What is the Notebook?

Your Notebook helps you keep useful math work organized so you can return to it later.

From the Notebook, you can access:

History — revisit problems you've previously worked on.
Favorites — save especially useful problems or solutions.
Tags — organize problems by subject, class, chapter, exam, or another category.
Notes — add your own context or reminders to saved work.

For example, you could create tags such as Calculus, Midterm Review, or Chapter 6 and gradually build your own study collection.