The Book of A-I-U-E-O Fukuinkan Shoten 0001-9171 Written by Noriko Matsui Format: Hardcover, Color Size: 20 x 20 cm / 48 pages Release Date: February 1972 Price: ¥990 Content Cute Little Guide: Colorful and charming little people appear against a white background, guiding children through the shapes of letters and words. Visually Easy to Understand: For example, "a" is paired with "ahiru" (duck), with the word and picture starting with that letter, making it easy to associate names of things with letters. Charm of the Series: Similar to Noriko Matsui's representative work "The Book of Clocks," the simple yet warm illustration style is supported by many children.