This book avoids both of these shortcomings. It gives a reasonably large number of variations - anything worthwhile/likely to be played by white, AND detailed explanations regarding the strategies behind the moves. The variations are all supported by games of leading players. The book is well written and easy to read.

Importantly, it clearly points out some of the pitfalls to be aware of in playing this opening.

It also provides brief but insightful annotations to a large number of complete games, adding value beyond simply opening theory.

Thoroughly recommended.