Title: 図説かなの成り立ち事典 Authors: 森岡 隆 著 Pages: 227P Published At: August, 2006 Description: This comprehensive guide explains the origins and development of hiragana, katakana, and hentaigana (variant kana) by examining both their visual forms and phonetic characteristics. The book traces how each individual kana character evolved, offering detailed analysis of their etymological roots and formation processes. The illustrated photographs featuring collected examples of hentaigana serve as invaluable historical documentation and reference materials for scholars and enthusiasts of Japanese writing systems.