五體字類

The five styles of Japanese calligraphy, (tensho, kaisho, gyōsho, sōsho, reisho) are beautifully depicted in this character dictionary. If you want to know (mostly) all the ways the most common chinese characters (kanji) used in Japanese script can be written, or decipher a particular kanji, even from ancient seals (tensho)/abbreviated cursive characters (sōsho) or scrolls, this is the book to get.