The first 100 pages of this are a bit of a loss: a summary of early Islamic theology, clear and readable but quite out of date. After this one gets into the meat of the text, as Wensinck provides detailed commentary on three of the original creeds. The flaws of this book are common to much of the older Orientalist scholarship: he relies too much on broad textual criticism, and he is quite comfortable weighing in on what is "authentic" Islam. Overall this text will be of some use for specialists, but it is not one of the first that I would recommend to a reader interested in Islamic theology.