- Maximum Happiness With Maximum Concentration
- Ten Steps to Exam Success
- How to get through your Maths exam
- Why would you want a maths tutor?
- A Problem Halved: the Trouble with Fractions
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).