Sell, buy or rent Evan Chen textbooks

Euclidean Geometry in Mathematical Olympiads (Problem Books) (Problem Books, 27)

by Evan Chen
ISBN-13: 9781470466206
ISBN-10: 1470466201
Edition: Reprint
Publication date: 2021
Publisher: American Mathematical Society
Format: Paperback 311 pages

Euclidean Geometry in Mathematical Olympiads (Maa Problem)

by Evan Chen
ISBN-13: 9780883858394
ISBN-10: 0883858398
Publication date: 2016
Publisher: American Mathematical Society
Format: Paperback 311 pages