The volume starts with an introductory essay provided by the editor, James Tully, which is the best summary of Skinner's methodology I've read, even better than the ones he provides himself. There are three more sections: first, orginial essays by Skinner himself outlining his methodological approach; second, criticisms of this approach; and third, a reply by Skinner to these critical essays (and, somewhat confusingly, a reply to critical essays not found in this volume).
All but one of Skinner's essays can be found in the first volume of Visions of Politics. It's probably worth reading Visions of Politics. First of all, the essay that is in this volume but not in Visions doesn't say much new. The second reason relates to the fact that the bulk of the critical essay touch on Skinner's discussion of how to glean an author's intentions from their texts. Skinner's claims tha he is not using a conception of intention that refers to having a plan to act. Instead, he is concerned with intention descriptions of actions and thus with the question of what an agent may have intended or meant by speaking or writing a certain way. In other terms, Skinner uses the neo-Aristotelean conception of intention Anscombe discusses in her monograph. He isn't at all clear that this is the concpetion of intention he is using, so it's easy to see how his critics made this misinterpretation. The essays found in Visions of Politics are revised to make this clear.
Nonetheless, the critical esssays produce a range of criticisms (though are also of diverse quality) which are worth reading. In his reply, Skinner doesn't respond to all of the criticisms raised, particularly those which, in my opinion, are the most salient.