A well-rounded planning reference book As a student I found this book was always good for a quote regardless of your essay title because of the sheer breadth of coverage. Every conceivable planning topic is in here, and it's all easy to read and well set out. An excellent introduction to the planning system.
Good overview of the entire planning system This book provides an excellent overview of the planning system from its early routes until the present day. Also details specific aspects in more detail such as conservation policy, development plans etc. It provides a huge amount of information in a very easily digestible format which is modern and easy to read.