Western observers often group all Islamist parties together. But the groups often compete with one another there are subtle differences among them; it’s important to keep those differences in mind in analyzing Islamist politics. We’re a little late getting to this, but it December, the Hudson Institute published a monograph by Samuel Tadros, Islamist vs. Islamist:The Theologico-Political Questions, that analyzes the situation in Egypt. Here’s the publisher’s description:

This monograph is the second part of a two-year study on Egyptian Islamism funded by the Smith Richardson Foundation. The study is divided into two parts. The first maps the various currents, groups, and individuals that form the complex Egyptian Islamist scene. The second examines the internal dynamics of Islamism in terms of the interrelationship between its various constituent currents and their disagreements on key theological political questions. The study aims to fill two significant gaps in our knowledge of the Egyptian Islamist scene.