Cambridge press says available as of around 1 March, so in a couple of months. Samples are available of page proofs as they will, I gather, appear in the book. Here's the 3-page table of contents http://assets.cambridge.org/97805218/60451/toc/9780521860451_toc.pdf Here's an 11-page exerpt http://assets.cambridge.org/97805218/60451/excerpt/9780521860451_excerpt.pdf Here's the 4-page index http://assets.cambridge.org/97805218/60451/index/9780521860451_index.pdf So you can see, for example, how much of the book is about category theory, or how many pages are about Chern-Simons theory. Or any other topic. A book's index says a lot about it. There are some other sample pages...the menu of samples from the book is here: http://www.cambridge.org/uk/catalogue/catalogue.asp?isbn=9780521860451 Oriti's 5-page preface is in the section called "frontmatter" which also has other stuff.