Psicología integral
Ken Wilber
A Concise English Grammar for Foreign Students
Charles Ewart Eckersley
Scrum and XP from theTrenches. How we do Scrum
Henrik Kniberg
International Communism and the Communist International, 1919-43
Tim Rees & Andrew Thorpe
You're About to Make a Terrible Mistake: How Biases Distort ...
Olivier Sibony
The Oxford Dictionary of Philosophy
Simon Blackburn