Workbooks are often used in schools for younger students, either in middle school or elementary school. They are favored because students can work directly in their books, eliminating the need for looseleaf and copying questions from a textbook. In industry, they may be customized interactive manuals which are used to help provide structure to an otherwise complex problem.
The term workbook is also used to describe other compilations of questions that require the reader to complete scratch-work when dealing with higher-level mathematics. It can also be used as a training tool for certain job positions.