The IV Post Graduation Workshop – Botucatu Medical School - UNESP, was held on October 16–18, 2008, at Botucatu Medical School - UNESP. The Workshop was organized by post graduation students and several invited professors who offered several minicourses. Besides, the Workshop included lectures, roundtables, discussions and presentation of 112 papers whose Abstracts are published in the current issue of JVATiTD.