Object-Oriented Programming Concepts by Roberto Zicari · Published November 10, 2013 · Updated November 10, 2013 Sun, The Java Tutorial A great tutorial to get acquainted with OOP. LINK
Persistence Model Patterns A Practitioner’s View January 1, 2009 by Roberto Zicari · Published January 1, 2009 · Last modified February 16, 2014
The Vietnam of Computer Science January 1, 2006 by Roberto Zicari · Published January 1, 2006 · Last modified February 18, 2014
Contracted Persistent Object Programming November 1, 2005 by Roberto Zicari · Published November 1, 2005 · Last modified July 11, 2014