Yes, a coloring book can be considered an activity book, but it typically focuses on a specific type of activity: coloring. Activity books, in a broader sense, can encompass a variety of activities and exercises, such as puzzles, games, mazes, dot-to-dot, word searches, and more. These books are designed to engage and entertain individuals, often with a mix of educational and recreational content.
A coloring book primarily consists of line drawings or designs that can be filled in with colors, making it a single-focused activity book. However, some activity books may include coloring pages as a part of their content, so in those cases, a coloring book could be a component of a more comprehensive activity book.
In summary, while a coloring book is a type of activity book, an activity book can include various activities beyond coloring, making it more versatile in terms of engaging and entertaining the user.