Manga is not often associated with education, but there is actually an entire genre dedicated to it: 学習漫画 (gakushū manga or educational manga).
The format has a number of inherent advantages over traditional media. With both written and pictorial elements, manga can often succeed in conveying complex ideas in easy-to-understand ways better than just diagrams or text alone. Manga’s serialized format also naturally lends itself to step-by-step instructions, giving readers a deeper feeling of sequential order. Finally, the narrative nature of manga often sticks in reader’s minds and helps them to create a framework for understanding the new material.