The Brain Games that Saved 93-Year-Old Ivan Moscovich
The Puzzle Universe: The History of Math in 315 Puzzles by Ivan Moscovich | Goodreads
The Think Tank: A Fantastic Collection of 3-D and Pop-Up Games and Puzzles [FIRST EDITION, FIRST PRINTING] by Moscovich, Ivan: As New Hardcover (1998) 1st Edition | Vero Beach Books
Fat Brain Toys Fold Origami Brainteaser Set by Ivan Moscovich - 182129000816
Fiendishly Difficult Visual Perception Puzzles by Ivan Moscovich - Paperback - from Better World Books (SKU: 38539634-6)
FIENDISHLY DIFFICULT MATH PUZZLES By Ivan Moscovich 9780806982700 | eBay