- How to get through your Maths exam
- Platonic Solids and Modelling Balloons
- The Beveridge-Longcope Equation
- Ten Steps to Exam Success
- Maximum Happiness With Maximum Concentration
I recommend the following book:
This book by David Rayner and Paul Williams is ideal for the preparation for C1, C2 for the new specifications (Edexcel, AQA, OCR).