u/Big-Poet-1235

Please drop all relevant resources for IOQM,RMO,INMO including Books, Notes, Lectures, Tests, Question Papers.

I will start by recommending books like-

1. An Excursion In Mathematics- A crisp and thin book especially for RMO and INMO basics. It is more or less sufficient for IOQM. There are all four major portions(NT,Algebra,Combinatorics,Geometry) of mathematics in it in a good quality.

2. Challenge And Thrill Of Pre-College Mathematics- A book especially known for geometry. The geometry from this book is more than enough for IOQM,RMO and INMO basics. The geometry of this book is in 2 parts and the first part is absolutely necessary and very basic and doable and the second part contains a lot more extra syllabus for ioqm and rmo. People generally dont recommend other chapters from this book but u can try if it suits you.

3. Mathematical Circles- It is a thin and basic book. It is not designed for completing IOQM or olympiad syllabus but the questions the book has really focus on improving thinking skills. I recommend this to younger people. Although the questions are basic and wouldnt be ever asked in Indian olympiads. But the foundation it may build may take you to places.

4. Pathfinder for Pre-RMO/IOQM- For jee students i emphasise this book as it is the bridge between ioqm and rmo. The questions and the theory is of IOQM level and this book is absolutely enough for people who are good in jee maths and are looking for a quick alternative to prepare fast for ioqm.