As a collection of talks and Q&As, I found Understanding Power to be one of Chomsky’s most accessible books. There were plenty of moments where I was completely shocked by what he was saying and frankly in disbelief, but the most incredible thing about this book is how everything is sourced and listed at UnderstandingPower.com , a whopping 449 pages worth of sources. Truly one of the greatest intellectual minds of the last century.

This is an overview of many of Chomsky's ideas that would be a great intro to anyone interested in his work. It's in question/answer format and covers a very wide range of topics. The footnotes also refer to a website that has more detailed material on the topics covered.