Recommended reading:

Edexcel GCE Politics AS and A-level Student Book  (Edexcel GCE Politics 2017) Paperback – 4 Aug. 2017 by Graham Goodlad (Author), Andrew Mitchell (Author), Andrew Colclough (Author), Ian Levinson (Author) ISBN 9781292187020

UK Parliament www.parliament.uk   
Politics home  www.politicshome.com   
BBC News  www.bbc.co.uk/news/politics   
Guardian politics  https://www.theguardian.com/politics   
Telegraph politics https://www.telegraph.co.uk/politics/ 
The Economist https://www.economist.com/  
The Spectator  https://www.spectator.co.uk/