Java 8 Lambdas
Richard Warburton
Enabling Microservice Success
Sarah Wells
The Book of R
Tilman M. Davies
Efficient Algorithms for Sorting and Synchronization (rsync)
Andrew Tridgell
SELinux User's and Administrator's Guide
Barbora Ančincová & Ioanna Gkioka & Tomáš Čapek & Mirek Jahoda
Essential System Administration
Æleen Frisch
UNIX and Linux System Administration Handbook
Evi Nemeth & Garth Snyder & Trent R. Hein & Ben Whaley
Principles of Network and System Administration 2nd Edition
Mark Burgess
Using and Administering Linux: Volume 2
David Both
Using and Administering Linux: Volume 3
Using and Administering Linux: Volume 1
Pro Linux System Administration
Dennis Matotek & James Turnbull & Peter Lieverdink
The Linux Philosophy for SysAdmins
Practical Linux System Administration
Kenneth Hess