I'm @rolandbouman, a Web- and BI Developer and Information Analyst. I have worked for MySQL AB, Sun Microsystems and I'm currently working as a software engineer for Pentaho (a Hitachi data systems company).
Together with Jos van Dongen I wrote a book called "Pentaho Solutions" (Wiley, ISBN: 978-0-470-48432-6, 630+ pages). This book is intended for people that want to get started with Business Intelligence and provides lots of practical examples to work with the open source Pentaho Business Intelligence Suite.
Together with Matt Casters and Jos van Dongen, I authored another book for Wiley called "Pentaho Kettle Solutions" (750+ pages, Wiley, ISBN: 978-0-470-63517-9). This book is more specialized and focuses on Pentaho data integration (Kettle) and ETL.