The "Chaikuro" series, a 12-volume set with art direction by Ei Takada. This is an encyclopedia for children that they can learn from while reading picture books together. Size: 285 x 220 cm Contents: Volume 1: Cars of the Future Volume 2: Spring, Summer, Autumn, Winter Volume 3: Numbers and Shapes I Volume 4: Numbers and Shapes II Volume 5: Numbers and Shapes III Volume 6: Colors and Shapes I Volume 7: Colors and Shapes II Volume 8: Science - It's a Mystery! Volume 9: Let's Make and Play I Volume 10: Let's Make and Play II Volume 11: Words and Letters I Volume 12: Words and Letters II The box has some damage. The books inside are mostly clean, but there may be oversights. The color sheet for Volume 7 is missing. The books are filled with lovely illustrations in gentle colors on every page, designed to make learning about the world fun. The content seems to cover material up to the level of elementary school entrance exams. Thank you for looking.