David Geary is the president of Sabreware, Inc., a Java training and consulting company. David has developed object-oriented software for nearly 20 years and worked on the Java APIs at Sun Microsystems from 1994 to 1997. He is the author of six Java books, including the Graphic Java series, Advanced JavaServer Pages, and Core JSTL.

David is a member of the expert groups for the JavaServer Pages Standard Tag Library (JSTL) and JavaServer Faces; was one of the earliest contributors to the Apache Struts application framework; and wrote test questions for Sun's Web Component Developer Exam. In his spare time, David writes the Java Design Patterns column and other articles for JavaWorld online. David is currently working on Core JavaServer Faces, which will be published by Sun Microsystems Press in the Spring of 2004.