Jonathan Lewis is a well-known figure in the Oracle world with more than 23 years experience using the software. He has published two books about Oracle, has contributed to three others, and has just completed a new book (Oracle Core: Apress, ISBN 978-1430239543) on the Oracle database engine. He runs a couple of websites and contributes fairly regularly to newsgroups, forums, and User Group magazines and events around the world.
Jonathan has been self-employed for most of his time in the IT industry. For the last seventeen years he has specialised in short-term assignments, typically of a design, review, or trouble-shooting nature – often spending no more than two or three days on a client site to address problems . He runs seminars about using Oracle all over the world and visited 50 different countries (and a dozen US states) to talk about, or trouble-shoot, Oracle systems.