The author "mizutama" is a popular eraser writer living in Aomori.
Eraser stamps have already been published by Shogakukan, boutiques, and PHP. Even when making a stamp, the result of "design (illustration)" is the most important, and that is her popular point.
This book is a "book of illustration lessons" featuring mizutama's illustrations (designs).
In addition to introducing examples such as illustrations drawn on petit letters, memos, fax transmission paper, and illustrations that combine messages, there is also a lesson corner where you can draw by simply tracing.