The Illustrated Network: How TCP/IP Works in a Modern Network
Walter Goralski
How Linux Works: What Every Superuser Should Know
Brian Ward
Seven Concurrency Models in Seven Weeks: When Threads Unravel
Paul Butcher
SELinux System Administration
Sven Vermeulen
Embedded Systems: Introduction to the ARM® Cortex(TM)-M Microcontrollers
Jonathan W Valvano