We will send you an email to reset your password.
Get thoughtful picks from Thryft’s ever-changing collection of pre-loved books, vinyl and CDs—plus occasional sales and events.
By signing up, you agree to receive marketing emails from Thryft. You can unsubscribe at any time.
This item is sold out
Get an email when a matching copy is available again.
Draft preview — nothing is saved and no email is sent.
The item you've got your eye on is secondhand. You probably already know that, but just in case!
The estimated retail price shown next to any listed item represents the first-hand prices we've seen elsewhere, or the estimated original retail price of a comparable item of the same quality, construction and material offered elsewhere in new condition.
Elegant brain-teasers for serious math lovers
This is the kind of book that makes you stop, scribble, and feel a real jolt of satisfaction when an idea clicks. It is perfect for someone who enjoys seeing how deceptively simple problems can open into deep, beautiful mathematics. With complete solutions, it feels less like a dry problem set and more like a conversation with a very clever mathematical mind.
The item you've got your eye on is secondhand. You probably already know that, but just in case!
The estimated retail price shown next to any listed item represents the first-hand prices we've seen elsewhere, or the estimated original retail price of a comparable item of the same quality, construction and material offered elsewhere in new condition.
This book may contain very minor cosmetic defects, but it is in pristine condition. There should be no yellowing, no foxing, no water damage, and no annotations of any kind on the cover and the pages. For paperbacks, there should not be any crease marks on the spine. This book is good as new — lucky you!
*Books may be missing bundle media (e.g. CD, e-book code), if included.
This book has been used, but it is still in a clean condition. There should be no foxing or annotations of any kind on the inner pages, but a sparse amount may be present on the cover, title pages, or outside edges of the book. There should be no water damage of any kind. For paperbacks, there may be light crease marks on the spine.
*Books may be missing bundle media (e.g. CD, e-book code), if included.
We do our best to ensure the quality of our books, but there is no escaping the wear and tear that comes with time. Slight foxing and some annotations may be present on the pages and the cover. There should be no water damage of any kind. For paperbacks, there may be several crease marks on the spine.
*Books may be missing bundle media (e.g. CD, e-book code), if included.
This is a well-read book, which means that the previous owner probably really enjoyed it! The cover and pages may include moderate foxing and annotations, but the text is not obscured and still readable. Moderate cosmetic defects and minor water damage may be present on the edges of the book. For paperbacks, there may be multiple crease marks on the spine.
*Books may be missing bundle media (e.g. CD, e-book code), if included.
Find out more about our process here.
Adding product to your cart
Elegant brain-teasers for serious math lovers
This is the kind of book that makes you stop, scribble, and feel a real jolt of satisfaction when an idea clicks. It is perfect for someone who enjoys seeing how deceptively simple problems can open into deep, beautiful mathematics. With complete solutions, it feels less like a dry problem set and more like a conversation with a very clever mathematical mind.
Get recommendations from our books, vinyl and CDs, plus occasional Thryft updates.
By completing this form, you are signing up to receive our emails and can unsubscribe at any time.
