Each chapter ends with —10 to 15 problems labeled with their original contest source (IMO Shortlist, APMO, Balkan MO, etc.) and a difficulty rating (★ to ★★★★★).
The book is divided into plus a solutions appendix . Each chapter follows: theory capsule → worked examples → exercise sets (graded: Warming Up, Training Camp, IMO Arena) . Each chapter ends with —10 to 15 problems