First degree
David Rosenfelt
How to Raise the Perfect Dog: Through Puppyhood and Beyond
Cesar Millan
The seeker
Simon Hawke
Secret Histories 2 - Daemons Are Forever
Simon R. Green
Secret Histories (2)
Second foundation
Isaac Asimov
Foundation's Triumph
David Brin
Forward the foundation
Foundation and Chaos
Greg Bear
Foundation's edge