STEM & Science

Science, technology, engineering and mathematics, from popular science for general readers through textbooks and reference works. This is one of the best categories to buy used: technical books are expensive new, editions change for reasons that rarely affect the fundamentals, and a previous edition often teaches the same material for a tenth of the price. Well suited to students, homeschooling families and anyone teaching themselves a subject. Every book is inspected and graded before listing. Free shipping on orders over $15.

269 products

About STEM & Science

Science, technology, engineering and mathematics, from popular science for general readers through textbooks and reference works. This is one of the best categories to buy used: technical books are expensive new, editions change for reasons that rarely affect the fundamentals, and a previous edition often teaches the same material for a tenth of the price. Well suited to students, homeschooling families and anyone teaching themselves a subject. Every book is inspected and graded before listing. Free shipping on orders over $15.

Book Bundles

Book Bundles

Handpicked stacks at extra savings
DVD Volume Discounts

DVD Volume Discounts

Buy 5+ for 10% off | Save up to 20%
Happy Book Stack+

Happy Book Stack+

10% off everything, 25% off preorders
Free Shipping Threshold

Free Shipping Threshold

Enjoy free delivery on orders $15+