The best beginning to end book is probably Understanding the Linux Kernel, 3rd edition (you can buy it online at . It covers a lot of operating system concepts

The best beginning to end book is probably Understanding the Linux Kernel, 3rd edition (you can buy it online at . It covers a lot of operating system concepts and how they are implemented in the kernel. At some point you'll want to look at the source code, and the best way to do this is using the Linux Cross Reference, found at http://lxr.linux.no/ http://lxr.linux.no/ .