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
Contracted Persistent Object Programming November 1, 2005 by Roberto Zicari · Published November 1, 2005 · Last modified July 11, 2014
Amos II September 1, 2005 by Roberto Zicari · Published September 1, 2005 · Last modified February 18, 2014
Speed, Data, and Ecosystems: Excelling in a Software-Driven World February 28, 2017 by Roberto Zicari · Published February 28, 2017