John Jefferies & Sarra Jenkins 
Pearson Edexcel A Level Politics 2nd edition: UK Government and Politics, Political Ideas and US Government and Politics [EPUB ebook] 

– Includes all core and non-core political ideas, with key thinkers integrated throughout the text- Builds confidence by highlighting key terms and explaining links between different topics in the specification- Provides opportunities to test your progress with quick knowledge-check questions.- Develops analysis and evaluation skills with ’stretch and challenge‘ activities and suggestions for targeted further reading.- Features practice questions with answer guidance online at www.hoddereducation.co.uk.