A book that aims to teach letters, vocabulary, sounds and writing, the book contains 28 letters, 364 pictures, 364 words. The letters are divided into seven groups, each group has 4 letters (they have the same color). The child learns through the book the sound, shape and manner of writing the letter. Acquire new vocabulary through a set of clear graphics and expressive images. Distinguish the letter form and write it first, middle, and end of a word. Distiguish and write letters with short vowels. Distiguish and write letters with long vowels. At the end of each color group (consisting of 4 letters) there are 4 pages for review and evaluation, through which the child is able to perceive, distinguish and apply what he has learned, and the teacher can assess the understanding and performance of the student.