If you are a secondary student aiming for your first qualification, this is arguably the best "first book" to buy. It focuses on the specific skillset required for UKMT competitions rather than general mathematical theory.
: Chapters covering essential "Olympiad-style" theory in four key pillars: a mathematical olympiad primer pdf
I searched for a review of "A Mathematical Olympiad Primer" specifically in , but please note: If you are a secondary student aiming for
A refers primarily to the widely acclaimed introductory guide by Geoff Smith , published by the UK Mathematics Trust (UKMT) . It is designed to bridge the gap between standard school mathematics and the rigorous, proof-based demands of competitions like the British Mathematical Olympiad (BMO). Core Focus and Syllabus a mathematical olympiad primer pdf