In addition to details on individual Nag Hammadi texts as well as some other Gnostic texts, Matkin presents keys players within early Chistianity on the orthodox and on the gnostic side. He also discusses those early times, later gnostic movements, and modern interests in gnosticism.
The book is nicely chunked: twenty chapters each divided into sections and subsections that makes it easy to finish one piece, put the book down, and return to it later so as not to be overwhelmed by all the complex mythologies of the Gnostics.
Matkin steers a middle road, neither a proponent of Gnosticism nor eager to dismiss it. While acknowledging Elaine Pagel's contribution to making the early Gnostics accessible, he doesn't refrain from criticizing her. While open to what made the Gnostics tick, he presents critics. For example, he he includes the comment of Frederica Mathewes-Green, an Eastern Orthodox writer, that Gnostic schemes to directly experience God were "so wacky".
The one real problem I face after reading this book is that it leaves me with no excuse not to read the Nag Hammadi texts again themselves ( The Nag Hammadi Library ) which, without Matkin's guidance, may overwhelm me, as they did the first time I read them. Even the second time I read them (in 2005), I can see now I missed a lot due to less preparation. I am rereading Matkin's summary of each Nag Hammadi text as I read the texts themselves. Along with other background reading in Gnosticism, Matkin has prepared me for what I hope to be a really inspiring reading of the Nag Hammadi Library. So I am grateful to Matkin for his efforts and delivery.