Is there an equivalent book/resource to "The Linux Programming Interface" for FreeBSD?

Most of you here are probably aware of the famous *The Linux Programming Interface*, which presents a truly masterful guide to the Linux and general POSIX APIs. I know that much of the general POSIX knowledge can be applied to all Unix/Unix-like systems. However, I'm interested as to whether there is an equivalent book, document or resource concerning lower level FreeBSD systems programming and interfaces that are exclusive to it, such as GEOM and devd. Or should I simply stick to manpages and docs?