1. Loved discovering that shebangs are handled by the kernel in Chapter 3 - I did not know that. 2. Enjoyed reading the `execve` walkthrough. 3. I also like that you make it a point to include what the Mac OS and Windows equivalents for Linux terms are.

If you could enable opening of the graphics such as the one illustrating the hierarchical page table concept to their original high resolution, that would be nice for readability.