Peck and his colleagues do a fantastic job of collecting annotations on collaborative writing articles dating from the early 1970s to the mid-1990s. Not only are the articles sorted according to whether they concern academic or workplace writing, but they are also subcategorized into useful headings like theoretical support for collaboration, problems with collaboration, preparing students for collaboration, etc. The annotations are much more substantial than you'll find in the CCCC Bibs, and most of them give me a good idea whether or not the article or book in question will be helpful to my research. I've been working on a dissertation in collaborative writing for the past two years, and have often felt overwhelmed by the sheer amount of literature on the subject; I have two file cabinets full of articles and a shelf full of books, and it's tough to keep track of it all. I wish I had this book back when I started the project! Although I winced a little at the hefty hardcover price, in the three days I've owned this book it's already saved me hours of time. I recommend it heartily to all compositionists who want a concise and nearly-comprehensive reference for collaborative writing research over the past 25 years.