Trends In Book Auction Prices

12 Month Moving Average of Median Auction Prices
Date Price
2023-05-01 0:00AM 306.55333333333334
2023-06-01 0:00AM 307.97249999999997
2023-07-01 0:00AM 306.2291666666667
2023-08-01 0:00AM 303.395
2023-09-01 0:00AM 301.7816666666667
2023-10-01 0:00AM 298.7816666666667
2023-11-01 0:00AM 295.5275
2023-12-01 0:00AM 292.6075
2024-01-01 0:00AM 293.77416666666664
2024-02-01 0:00AM 291.27416666666664
2024-03-01 0:00AM 291.27416666666664
2024-04-01 0:00AM 294.1983333333333
2024-05-01 0:00AM 291.3241666666667
2024-06-01 0:00AM 288.3241666666667
2024-07-01 0:00AM 289.35833333333335
2024-08-01 0:00AM 290.1091666666667
2024-09-01 0:00AM 287.90166666666664
2024-10-01 0:00AM 290.9966666666666
2024-11-01 0:00AM 288.89000000000004
2024-12-01 0:00AM 290.5491666666667
2025-01-01 0:00AM 289.3825
2025-02-01 0:00AM 287.8158333333333
2025-03-01 0:00AM 284.5533333333333
2025-04-01 0:00AM 285.9316666666667
2025-05-01 0:00AM 286.91166666666663
2025-06-01 0:00AM 284.9116666666667
2025-07-01 0:00AM 284.8283333333334
2025-08-01 0:00AM 285.99500000000006
2025-09-01 0:00AM 284.2441666666667
2025-10-01 0:00AM 286.29583333333335
2025-11-01 0:00AM 287.6566666666667
2025-12-01 0:00AM 288.20416666666665
2026-01-01 0:00AM 288.7208333333333
2026-02-01 0:00AM 292.1708333333333
2026-03-01 0:00AM 293.5824999999999
2026-04-01 0:00AM 292.82166666666666
2026-05-01 0:00AM 294.65749999999997

Year to Year Change in 12 Month Moving Average
Date Average
2024-05-01 0:00AM -15.229166666666629
2024-06-01 0:00AM -19.648333333333255
2024-07-01 0:00AM -16.870833333333337
2024-08-01 0:00AM -13.2858333333333
2024-09-01 0:00AM -13.880000000000052
2024-10-01 0:00AM -7.785000000000082
2024-11-01 0:00AM -6.637499999999932
2024-12-01 0:00AM -2.058333333333337
2025-01-01 0:00AM -4.3916666666666515
2025-02-01 0:00AM -3.4583333333333712
2025-03-01 0:00AM -6.72083333333336
2025-04-01 0:00AM -8.266666666666652
2025-05-01 0:00AM -4.41250000000008
2025-06-01 0:00AM -3.4125000000000227
2025-07-01 0:00AM -4.529999999999973
2025-08-01 0:00AM -4.11416666666662
2025-09-01 0:00AM -3.6574999999999704
2025-10-01 0:00AM -4.700833333333264
2025-11-01 0:00AM -1.2333333333333485
2025-12-01 0:00AM -2.3450000000000273
2026-01-01 0:00AM -0.6616666666666902
2026-02-01 0:00AM 4.355000000000018
2026-03-01 0:00AM 9.02916666666664
2026-04-01 0:00AM 6.889999999999986
2026-05-01 0:00AM 7.745833333333337

12 Month Moving Average of Sell Through Rate
Date Rate
2023-05-01 0:00AM 0.8140416666666668
2023-06-01 0:00AM 0.8104333333333334
2023-07-01 0:00AM 0.8107000000000001
2023-08-01 0:00AM 0.8086333333333334
2023-09-01 0:00AM 0.8095166666666668
2023-10-01 0:00AM 0.8068666666666666
2023-11-01 0:00AM 0.8059916666666668
2023-12-01 0:00AM 0.8040249999999999
2024-01-01 0:00AM 0.8036833333333333
2024-02-01 0:00AM 0.80075
2024-03-01 0:00AM 0.8012916666666666
2024-04-01 0:00AM 0.8000249999999999
2024-05-01 0:00AM 0.8018083333333333
2024-06-01 0:00AM 0.8037249999999999
2024-07-01 0:00AM 0.80025
2024-08-01 0:00AM 0.8007750000000001
2024-09-01 0:00AM 0.7983250000000001
2024-10-01 0:00AM 0.8044666666666668
2024-11-01 0:00AM 0.8007583333333335
2024-12-01 0:00AM 0.8038333333333333
2025-01-01 0:00AM 0.8016666666666666
2025-02-01 0:00AM 0.8001916666666666
2025-03-01 0:00AM 0.799725
2025-04-01 0:00AM 0.7991
2025-05-01 0:00AM 0.796925
2025-06-01 0:00AM 0.7960916666666668
2025-07-01 0:00AM 0.79745
2025-08-01 0:00AM 0.7989999999999999
2025-09-01 0:00AM 0.7995
2025-10-01 0:00AM 0.7975500000000001
2025-11-01 0:00AM 0.8000166666666667
2025-12-01 0:00AM 0.7965749999999999
2026-01-01 0:00AM 0.7958833333333334
2026-02-01 0:00AM 0.7996666666666666
2026-03-01 0:00AM 0.7997000000000001
2026-04-01 0:00AM 0.799525
2026-05-01 0:00AM 0.8025583333333333
12 Month Moving Average of Median Auction Prices
Date Price
2023-05-01 0:00AM 306.55333333333334
2023-06-01 0:00AM 307.97249999999997
2023-07-01 0:00AM 306.2291666666667
2023-08-01 0:00AM 303.395
2023-09-01 0:00AM 301.7816666666667
2023-10-01 0:00AM 298.7816666666667
2023-11-01 0:00AM 295.5275
2023-12-01 0:00AM 292.6075
2024-01-01 0:00AM 293.77416666666664
2024-02-01 0:00AM 291.27416666666664
2024-03-01 0:00AM 291.27416666666664
2024-04-01 0:00AM 294.1983333333333
2024-05-01 0:00AM 291.3241666666667
2024-06-01 0:00AM 288.3241666666667
2024-07-01 0:00AM 289.35833333333335
2024-08-01 0:00AM 290.1091666666667
2024-09-01 0:00AM 287.90166666666664
2024-10-01 0:00AM 290.9966666666666
2024-11-01 0:00AM 288.89000000000004
2024-12-01 0:00AM 290.5491666666667
2025-01-01 0:00AM 289.3825
2025-02-01 0:00AM 287.8158333333333
2025-03-01 0:00AM 284.5533333333333
2025-04-01 0:00AM 285.9316666666667
2025-05-01 0:00AM 286.91166666666663
2025-06-01 0:00AM 284.9116666666667
2025-07-01 0:00AM 284.8283333333334
2025-08-01 0:00AM 285.99500000000006
2025-09-01 0:00AM 284.2441666666667
2025-10-01 0:00AM 286.29583333333335
2025-11-01 0:00AM 287.6566666666667
2025-12-01 0:00AM 288.20416666666665
2026-01-01 0:00AM 288.7208333333333
2026-02-01 0:00AM 292.1708333333333
2026-03-01 0:00AM 293.5824999999999
2026-04-01 0:00AM 292.82166666666666
2026-05-01 0:00AM 294.65749999999997

Year to Year Change in 12 Month Moving Average
Date Average
2024-05-01 0:00AM -15.229166666666629
2024-06-01 0:00AM -19.648333333333255
2024-07-01 0:00AM -16.870833333333337
2024-08-01 0:00AM -13.2858333333333
2024-09-01 0:00AM -13.880000000000052
2024-10-01 0:00AM -7.785000000000082
2024-11-01 0:00AM -6.637499999999932
2024-12-01 0:00AM -2.058333333333337
2025-01-01 0:00AM -4.3916666666666515
2025-02-01 0:00AM -3.4583333333333712
2025-03-01 0:00AM -6.72083333333336
2025-04-01 0:00AM -8.266666666666652
2025-05-01 0:00AM -4.41250000000008
2025-06-01 0:00AM -3.4125000000000227
2025-07-01 0:00AM -4.529999999999973
2025-08-01 0:00AM -4.11416666666662
2025-09-01 0:00AM -3.6574999999999704
2025-10-01 0:00AM -4.700833333333264
2025-11-01 0:00AM -1.2333333333333485
2025-12-01 0:00AM -2.3450000000000273
2026-01-01 0:00AM -0.6616666666666902
2026-02-01 0:00AM 4.355000000000018
2026-03-01 0:00AM 9.02916666666664
2026-04-01 0:00AM 6.889999999999986
2026-05-01 0:00AM 7.745833333333337

12 Month Moving Average of Sell Through Rate
Date Rate
2023-05-01 0:00AM 0.8140416666666668
2023-06-01 0:00AM 0.8104333333333334
2023-07-01 0:00AM 0.8107000000000001
2023-08-01 0:00AM 0.8086333333333334
2023-09-01 0:00AM 0.8095166666666668
2023-10-01 0:00AM 0.8068666666666666
2023-11-01 0:00AM 0.8059916666666668
2023-12-01 0:00AM 0.8040249999999999
2024-01-01 0:00AM 0.8036833333333333
2024-02-01 0:00AM 0.80075
2024-03-01 0:00AM 0.8012916666666666
2024-04-01 0:00AM 0.8000249999999999
2024-05-01 0:00AM 0.8018083333333333
2024-06-01 0:00AM 0.8037249999999999
2024-07-01 0:00AM 0.80025
2024-08-01 0:00AM 0.8007750000000001
2024-09-01 0:00AM 0.7983250000000001
2024-10-01 0:00AM 0.8044666666666668
2024-11-01 0:00AM 0.8007583333333335
2024-12-01 0:00AM 0.8038333333333333
2025-01-01 0:00AM 0.8016666666666666
2025-02-01 0:00AM 0.8001916666666666
2025-03-01 0:00AM 0.799725
2025-04-01 0:00AM 0.7991
2025-05-01 0:00AM 0.796925
2025-06-01 0:00AM 0.7960916666666668
2025-07-01 0:00AM 0.79745
2025-08-01 0:00AM 0.7989999999999999
2025-09-01 0:00AM 0.7995
2025-10-01 0:00AM 0.7975500000000001
2025-11-01 0:00AM 0.8000166666666667
2025-12-01 0:00AM 0.7965749999999999
2026-01-01 0:00AM 0.7958833333333334
2026-02-01 0:00AM 0.7996666666666666
2026-03-01 0:00AM 0.7997000000000001
2026-04-01 0:00AM 0.799525
2026-05-01 0:00AM 0.8025583333333333
12 Month Moving Average of Median Auction Prices
Date Price
2023-05-01 0:00AM 306.55333333333334
2023-06-01 0:00AM 307.97249999999997
2023-07-01 0:00AM 306.2291666666667
2023-08-01 0:00AM 303.395
2023-09-01 0:00AM 301.7816666666667
2023-10-01 0:00AM 298.7816666666667
2023-11-01 0:00AM 295.5275
2023-12-01 0:00AM 292.6075
2024-01-01 0:00AM 293.77416666666664
2024-02-01 0:00AM 291.27416666666664
2024-03-01 0:00AM 291.27416666666664
2024-04-01 0:00AM 294.1983333333333
2024-05-01 0:00AM 291.3241666666667
2024-06-01 0:00AM 288.3241666666667
2024-07-01 0:00AM 289.35833333333335
2024-08-01 0:00AM 290.1091666666667
2024-09-01 0:00AM 287.90166666666664
2024-10-01 0:00AM 290.9966666666666
2024-11-01 0:00AM 288.89000000000004
2024-12-01 0:00AM 290.5491666666667
2025-01-01 0:00AM 289.3825
2025-02-01 0:00AM 287.8158333333333
2025-03-01 0:00AM 284.5533333333333
2025-04-01 0:00AM 285.9316666666667
2025-05-01 0:00AM 286.91166666666663
2025-06-01 0:00AM 284.9116666666667
2025-07-01 0:00AM 284.8283333333334
2025-08-01 0:00AM 285.99500000000006
2025-09-01 0:00AM 284.2441666666667
2025-10-01 0:00AM 286.29583333333335
2025-11-01 0:00AM 287.6566666666667
2025-12-01 0:00AM 288.20416666666665
2026-01-01 0:00AM 288.7208333333333
2026-02-01 0:00AM 292.1708333333333
2026-03-01 0:00AM 293.5824999999999
2026-04-01 0:00AM 292.82166666666666
2026-05-01 0:00AM 294.65749999999997

Year to Year Change in 12 Month Moving Average
Date Average
2024-05-01 0:00AM -15.229166666666629
2024-06-01 0:00AM -19.648333333333255
2024-07-01 0:00AM -16.870833333333337
2024-08-01 0:00AM -13.2858333333333
2024-09-01 0:00AM -13.880000000000052
2024-10-01 0:00AM -7.785000000000082
2024-11-01 0:00AM -6.637499999999932
2024-12-01 0:00AM -2.058333333333337
2025-01-01 0:00AM -4.3916666666666515
2025-02-01 0:00AM -3.4583333333333712
2025-03-01 0:00AM -6.72083333333336
2025-04-01 0:00AM -8.266666666666652
2025-05-01 0:00AM -4.41250000000008
2025-06-01 0:00AM -3.4125000000000227
2025-07-01 0:00AM -4.529999999999973
2025-08-01 0:00AM -4.11416666666662
2025-09-01 0:00AM -3.6574999999999704
2025-10-01 0:00AM -4.700833333333264
2025-11-01 0:00AM -1.2333333333333485
2025-12-01 0:00AM -2.3450000000000273
2026-01-01 0:00AM -0.6616666666666902
2026-02-01 0:00AM 4.355000000000018
2026-03-01 0:00AM 9.02916666666664
2026-04-01 0:00AM 6.889999999999986
2026-05-01 0:00AM 7.745833333333337

12 Month Moving Average of Median Auction Prices
Date Rate
2023-05-01 0:00AM 0.8140416666666668
2023-06-01 0:00AM 0.8104333333333334
2023-07-01 0:00AM 0.8107000000000001
2023-08-01 0:00AM 0.8086333333333334
2023-09-01 0:00AM 0.8095166666666668
2023-10-01 0:00AM 0.8068666666666666
2023-11-01 0:00AM 0.8059916666666668
2023-12-01 0:00AM 0.8040249999999999
2024-01-01 0:00AM 0.8036833333333333
2024-02-01 0:00AM 0.80075
2024-03-01 0:00AM 0.8012916666666666
2024-04-01 0:00AM 0.8000249999999999
2024-05-01 0:00AM 0.8018083333333333
2024-06-01 0:00AM 0.8037249999999999
2024-07-01 0:00AM 0.80025
2024-08-01 0:00AM 0.8007750000000001
2024-09-01 0:00AM 0.7983250000000001
2024-10-01 0:00AM 0.8044666666666668
2024-11-01 0:00AM 0.8007583333333335
2024-12-01 0:00AM 0.8038333333333333
2025-01-01 0:00AM 0.8016666666666666
2025-02-01 0:00AM 0.8001916666666666
2025-03-01 0:00AM 0.799725
2025-04-01 0:00AM 0.7991
2025-05-01 0:00AM 0.796925
2025-06-01 0:00AM 0.7960916666666668
2025-07-01 0:00AM 0.79745
2025-08-01 0:00AM 0.7989999999999999
2025-09-01 0:00AM 0.7995
2025-10-01 0:00AM 0.7975500000000001
2025-11-01 0:00AM 0.8000166666666667
2025-12-01 0:00AM 0.7965749999999999
2026-01-01 0:00AM 0.7958833333333334
2026-02-01 0:00AM 0.7996666666666666
2026-03-01 0:00AM 0.7997000000000001
2026-04-01 0:00AM 0.799525
2026-05-01 0:00AM 0.8025583333333333
12 Month Moving Average of Median Auction Prices
Date Price
2023-05-01 0:00AM 306.55333333333334
2023-06-01 0:00AM 307.97249999999997
2023-07-01 0:00AM 306.2291666666667
2023-08-01 0:00AM 303.395
2023-09-01 0:00AM 301.7816666666667
2023-10-01 0:00AM 298.7816666666667
2023-11-01 0:00AM 295.5275
2023-12-01 0:00AM 292.6075
2024-01-01 0:00AM 293.77416666666664
2024-02-01 0:00AM 291.27416666666664
2024-03-01 0:00AM 291.27416666666664
2024-04-01 0:00AM 294.1983333333333
2024-05-01 0:00AM 291.3241666666667
2024-06-01 0:00AM 288.3241666666667
2024-07-01 0:00AM 289.35833333333335
2024-08-01 0:00AM 290.1091666666667
2024-09-01 0:00AM 287.90166666666664
2024-10-01 0:00AM 290.9966666666666
2024-11-01 0:00AM 288.89000000000004
2024-12-01 0:00AM 290.5491666666667
2025-01-01 0:00AM 289.3825
2025-02-01 0:00AM 287.8158333333333
2025-03-01 0:00AM 284.5533333333333
2025-04-01 0:00AM 285.9316666666667
2025-05-01 0:00AM 286.91166666666663
2025-06-01 0:00AM 284.9116666666667
2025-07-01 0:00AM 284.8283333333334
2025-08-01 0:00AM 285.99500000000006
2025-09-01 0:00AM 284.2441666666667
2025-10-01 0:00AM 286.29583333333335
2025-11-01 0:00AM 287.6566666666667
2025-12-01 0:00AM 288.20416666666665
2026-01-01 0:00AM 288.7208333333333
2026-02-01 0:00AM 292.1708333333333
2026-03-01 0:00AM 293.5824999999999
2026-04-01 0:00AM 292.82166666666666
2026-05-01 0:00AM 294.65749999999997

Year to Year Change in 12 Month Moving Average
Date Average
2024-05-01 0:00AM -15.229166666666629
2024-06-01 0:00AM -19.648333333333255
2024-07-01 0:00AM -16.870833333333337
2024-08-01 0:00AM -13.2858333333333
2024-09-01 0:00AM -13.880000000000052
2024-10-01 0:00AM -7.785000000000082
2024-11-01 0:00AM -6.637499999999932
2024-12-01 0:00AM -2.058333333333337
2025-01-01 0:00AM -4.3916666666666515
2025-02-01 0:00AM -3.4583333333333712
2025-03-01 0:00AM -6.72083333333336
2025-04-01 0:00AM -8.266666666666652
2025-05-01 0:00AM -4.41250000000008
2025-06-01 0:00AM -3.4125000000000227
2025-07-01 0:00AM -4.529999999999973
2025-08-01 0:00AM -4.11416666666662
2025-09-01 0:00AM -3.6574999999999704
2025-10-01 0:00AM -4.700833333333264
2025-11-01 0:00AM -1.2333333333333485
2025-12-01 0:00AM -2.3450000000000273
2026-01-01 0:00AM -0.6616666666666902
2026-02-01 0:00AM 4.355000000000018
2026-03-01 0:00AM 9.02916666666664
2026-04-01 0:00AM 6.889999999999986
2026-05-01 0:00AM 7.745833333333337

12 Month Moving Average of Sell Through Rate
Date Rate
2023-05-01 0:00AM 0.8140416666666668
2023-06-01 0:00AM 0.8104333333333334
2023-07-01 0:00AM 0.8107000000000001
2023-08-01 0:00AM 0.8086333333333334
2023-09-01 0:00AM 0.8095166666666668
2023-10-01 0:00AM 0.8068666666666666
2023-11-01 0:00AM 0.8059916666666668
2023-12-01 0:00AM 0.8040249999999999
2024-01-01 0:00AM 0.8036833333333333
2024-02-01 0:00AM 0.80075
2024-03-01 0:00AM 0.8012916666666666
2024-04-01 0:00AM 0.8000249999999999
2024-05-01 0:00AM 0.8018083333333333
2024-06-01 0:00AM 0.8037249999999999
2024-07-01 0:00AM 0.80025
2024-08-01 0:00AM 0.8007750000000001
2024-09-01 0:00AM 0.7983250000000001
2024-10-01 0:00AM 0.8044666666666668
2024-11-01 0:00AM 0.8007583333333335
2024-12-01 0:00AM 0.8038333333333333
2025-01-01 0:00AM 0.8016666666666666
2025-02-01 0:00AM 0.8001916666666666
2025-03-01 0:00AM 0.799725
2025-04-01 0:00AM 0.7991
2025-05-01 0:00AM 0.796925
2025-06-01 0:00AM 0.7960916666666668
2025-07-01 0:00AM 0.79745
2025-08-01 0:00AM 0.7989999999999999
2025-09-01 0:00AM 0.7995
2025-10-01 0:00AM 0.7975500000000001
2025-11-01 0:00AM 0.8000166666666667
2025-12-01 0:00AM 0.7965749999999999
2026-01-01 0:00AM 0.7958833333333334
2026-02-01 0:00AM 0.7996666666666666
2026-03-01 0:00AM 0.7997000000000001
2026-04-01 0:00AM 0.799525
2026-05-01 0:00AM 0.8025583333333333


  • Forum Auctions
    The 10th Anniversary Sale
    Fine Books, Manuscripts and Works on Paper
    July 16, 2026
    Forum, July 16: Inundation papyrus. P.Michael 4, the ‘Inundation papyrus’, a geographical account of the Nile near Canopus, in Greek, remains of two columns from a manuscript scroll on papyrus, Egypt, second century CE. £12,000-18,000
    Forum, July 16: Book of Hours, use of Sarum, manuscript on vellum, 6 full-page miniatures, with famous Middle English inscriptions, Southern Netherlands for the English market, [c.1430]. £30,000-50,000
    Forum, July 16: Qu'ran, Arabic manuscript on burnished, stencilled, and gold-flecked paper, 447ff., Sultanate Gujarat, Ahmadabad, [after 1411 but no later than 1442]. £15,000-20,000
    Forum Auctions
    The 10th Anniversary Sale
    Fine Books, Manuscripts and Works on Paper
    July 16, 2026
    Forum, July 16: Turner (William). A New boke of the natures and properties of all wines that are commonly vsed here in England, rare first edition of the first English book on wine, By William Seres, 1568. £20,000-£30,000
    Forum, July 16: Spenser (Edmund). The Faerie Queene. first edition, Printed [by John Wolfe] for William Ponsonbie, 1590. £30,000-40,000
    Forum, July 16: Shakespeare (William). The Comedie of Errors, extracted from the first folio, Isaac Jaggard and Edward Blount, 1623. £15,000-20,000
    Forum Auctions
    The 10th Anniversary Sale
    Fine Books, Manuscripts and Works on Paper
    July 16, 2026
    Forum, July 16: Fleming (Ian). Casino Royale, first edition, signed presentation inscription from the author, 1953. £40,000-60,000
    Forum, July 16: d'Agoty (Jacques-Fabien Gautier). Anatomie de la Tête, first edition, Paris, chez le Sieur Gautier, 1748. £10,000-15,000
    Forum, July 16: Martial Arts.- Lee (Bruce). 'Praying Mantis style' Kung Fu book, containing numerous annotations, diagrams and graphs in Bruce Lee's hand, c. 1960. £50,000-70,000
    Forum Auctions
    The 10th Anniversary Sale
    Fine Books, Manuscripts and Works on Paper
    July 16, 2026
    Forum, July 16: Warre (Capt. Henry James). Sketches in North America and the Oregon Territory, first edition, rare hand-coloured issue, 1848. £30,000-40,000
    Forum, July 16: Norie (John William). The Marine Atlas, or Seaman's Complete Pilot for all the principal places in the known world..., 1826. £30,000-50,000
    Forum, July 16: Mao Tse-tung.- Kim Il-sung.-[Note book for visitors from China to Korea], signed by Mao and Kim, [Beijing, 1954]. £10,000-15,000
  • Sotheby’s Geek Week
    14-15 July
    Sotheby’s, July 14: Henry De La Beche. "Awful Changes," 1830. $6,000 to $9,000.
    Sotheby’s, July 15: [Apollo 11]. Flight Plan, Complete Original Printing Signed by Buzz Aldrin. $5,000 to $8,000.
    Sotheby’s, July 15: Thomas Alva Edison. Documents Establishing and Ending the Edison Electric Railway Company. $20,000 to $30,000.
    Sotheby’s, July 15: Richard P. Feynman. Feynman's Lectures on Gravitation 1-16, Including the Original Transcriptions of Lectures 12-16 by Morinigo and Wagner, With Richard Feynman's Manuscript Notations, 1971. $12,000 to $18,000.
    Sotheby’s, July 15: [Apollo 9]. A Group of Manuals and Mission Documents used by Stuart Roosa as a member of the Astronaut Support Crew. $5,000 to $8,000.
    Sotheby’s, July 15: [BYTE: The Small Systems Journal]. A collection of early foundational issues of Byte: The Small Systems Journal, with rare hardcover editions. $5,000 to $8,000.