Oliver O'Donovan offers an interesting and theologically insightful discussion of the 39 articles mainly in the context of 16th century England. He goes through the themes of the articles and identifies some of the thinking, history and tensions behind them. O'Donovan is almost entirely a fan of the articles; although, he also points out where he thinks they fall short. He adeptly highlights the areas where the articles shine in their wisdom and simplicity. His book will give readers a better understanding and appreciation for the articles, as well as a knowledge of their intended purpose within the newly formed Church of England of Cranmer's time.
Although this book appears to be out of print, it definitely recommends O'Donovan's more recent offerings.