The puzzle, task, and coloring books by Katharina Apostolidis have become a standard repertoire in music schools. With age-appropriate concepts, children can curiously explore the world of notes and note values. These editions are characterized by small learning steps with many opportunities for repetition that increase in difficulty, making them absolutely versatile for use as a supplementary resource for any school, for any instrument, and in any teaching format. They are designed for learning note and rest values. A CD-ROM with learning software is also available for this booklet.