This exercise workbook accompanies “Principles of Deformity Correction” a comprehensive text on the analysis, planning, and treatment of lower limb deformities in an accessible and instructive format. In addition to the book, which is extensively illustrated to avoid confusion and to leave little to the imagination, the planning is further facilitated via the exercise workbook available separately. The methods taught are simple and intuitive and require little memorization. The set of books are of equal interest to pediatric and adult orthopaedic surgeons.