His first book, Professional Windows Workflow Foundation, was released in 2007. Brett Grego is the Director of Engineering at KnowledgeLake and has been developing SharePoint solutions for KnowledgeLake since 2005. Chris Caplinger is the CTO and one of the founders of KnowledgeLake. Russ Houberg is a SharePoint 2010 Microsoft Certified Master and a Senior Architect at KnowledgeLake.