Eric Tamm leads you through history in Brian Eno - His Music And The Vertical Color Of Sound:

• Eno as a member of Roxy Music
• his first forays into solo work
• the invention of ambient
• Eno as installation artist, collaborator
• Eno as producer and cultural force

This book weaves through time and quotes Eno on various creative processes and contextual material. Tamm delves into metaphysics, social theories of art, religion and more as they pertain to Eno, and it's a fascinating read.

Throughout the book, Tamm breaks down each piece of Eno's musical output in a tick by tick analysis of structure and progression. It's an interesting juxtaposition of academic analysis and Eno's own admission of ignorance as to what he was actually doing in the creative act. I suspect many artistic minds will immediately understand and feel validation in this.

A more exhaustive analysis of one musician's work I've yet to read. The bibliography is worth a look alone. Now I'd just like to know how to get my eyes on some of Eno's own earlier written works.

This volume began as Tamm's doctoral dissertation research, but is easily understood by any interested reader. It's available in dead tree, or live bits as a Word doc from Tamm's Eno page.