This book is well written and structured. It covers all aspects of Sikh religion, history and culture in enough detail that you will feel you have a real understanding of the religion. The only reason I am giving 4 stars is that the references are rather few and should have been at the end of every respective chapter so one could delve deeper into any appropriate area one desires. Use (...) for more information and (...) for an entire online version of their holy book the Sri Guru Granth Sahib.
This is beyond doubt the worst written book I have ever read. An eleven year old essayist could be expected to have a more coherent thought pattern.