Heinz Kabutz is best known for his publication "The Java Specialists' Newsletter" [http://www.javaspecialists.eu], in which he describes interesting information gleaned "in the field" about Java.
Heinz currently lives in Chania, Crete, Greece, where he runs a small company specializing in software development and Java training.
One of the courses he runs is on Design Patterns - The Timeless Way of Coding.