Brady, there are plenty of on-line tutorials, however, the portal that is the BBC have a Bite-Size revision for all subjects here http://www.bbc.co.uk/schools/gcsebitesize/[^] . For maths, http://www.bbc.co.uk/schools/gcsebitesize/maths/[^] is the home page, and their RSS feed is http://www.bbc.co.uk/schools/gcsebitesize/maths/maths.xml[^] Also, this is a website also for Maths revision for GCSE and higher grade http://www.mathsrevision.net/[^]. The books I purchased for my daughter included 1. Edexcel GCSE Maths, intermediate, Heinemann, ISBN 0435 53270 7 2. Letts Revise AS & A2 Mathematics, Letts, ISBN 1 84315 477 3 and 3. Bostock & Chandler Core Maths for A Level, Nelson Thomas, ISBN 978 0 7487 5509 7 These and computer and other books I have purchased through www.bookdepository.co.uk[^] and their prices are most reasonable with free delivery worldwide. In fact, the last book I purchased from them was (a 1400 page hard back version) Troelsen Pro C# 2008 and the .net 3.5 platform, marked $59.99 and I paid £23.30