Final answer:
The book 'Heart of Clear Springs' is divided into three volumes for flexibility and efficiency. Each volume covers a different part of the story, allowing readers to choose their reading order. By offering the book in multiple volumes, readers can easily navigate through the comprehensive material.
Step-by-step explanation:
The book 'Heart of Clear Springs' is divided into three volumes. This division is done for flexibility and efficiency, as the material is comprehensive. Each volume covers a different part of the story, allowing readers to navigate through the book more easily. By offering the book in multiple volumes, readers can choose to read one volume at a time or read all three volumes in sequence.