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
On Supporting Digital Identity at Whitepages. Q&A with Priya Balakrishnan June 1, 2018 by Roberto Zicari · Published June 1, 2018
Object Persistence Design Guidelines January 1, 2005 by Roberto Zicari · Published January 1, 2005 · Last modified February 19, 2014