Claudio De Sio Cesari


Java Architect, Trainer, Books Author, Blogger

I am an Oracle trainer, book author and senior software architect. Since 1999 I’ve started working as a freelance IT consultant for several universities, ministerial authorities and IT companies, especially for Sun Microsystems. I am the author of the "Manuale di Java" book series from version 6 to 9, bestsellers in Italy, all published by Hoepli. My latest Java 15 book was published in September 2020 in Italy and is called “Il nuovo Java”. Recently, I’ve also published with Amazon my first (2 volumes) book in English (see