Learn about the things all around us with these fun, engaging books of first concepts. Babies can explore colours and numbers while they play with the bright, t

This handy guide will take abacus users from beginner to master level in a very short time. Though the Japanese abacus may appear mysterious or even primitive,

Combinatorics, Second Edition is a well-rounded, general introduction to the subjects of enumerative, bijective, and algebraic combinatorics. The textbook empha

Stimulating Creativity: Volume 1, Individual Procedures discusses the psychological and social factors affecting creativity, including techniques applicable in

This book will teach you step-by-step how to perform addition and subtraction on a Japanese abacus. Clearly explained with text and colored pictures throughout