There are several books about Open Book Management - a concept that was all the rage in the 1990s or so, until it got too commercialized and too deformed. This, I think, is the best Open Book Management book by far, as it covers a lot of ground that is highly relevant to Relative Targets. The book is well-informed, well-written, well-structured and highly insightful. It's the kind of volume that's practical enough that you pick it up occasionally for advice.
Recommended.