Shomp checks ProDPI for new sales every morning. Shomp is not associated with or endorsed by ProDPI.
- 15–20%
- Typical advertised discount · best seen 50%
- 15%
- Days with sales · 12 of 82 checked in 90 days
- 15 days
- Longest observed gap · last 90 days
No sale found on the latest check (Oct 7, 2026). Last sale observed Sep 30, 2026.
Shop storeSale history
10 sale periods from the last 90 days
Past offers are shown for reference. Store links open the homepage.
Buy one, get oneBuy one hardcover book, get one 50% off with code HDBOOK-BOGO50 through 9/301 day
Buy one, get oneBuy one hardcover book, get one 50% off with code HDBOOK-BOGO50 now through 9/30.1 day
Buy one, get oneBuy one hardcover book, get one 50% off with code HDBOOK-BOGO50 through 9/301 day
Buy one, get oneBuy one hardcover book, get one 50% off with code HDBOOK-BOGO50 (ends 9/30).1 day
Up to 15% offLabor Day sale — Save 15% sitewide with code LABORDAY15 through 9/81 day
Up to 15% offSave 15% sitewide with code LABORDAY15 through 9/83 days
Up to 15% offSave 15% sitewide with code LABORDAY15 through 9/8.1 day