Tijs Rademakers has published a new book on Activiti called Activiti in Action. His publisher, Manning, is offering everyone in the Alfresco community a 37% discount. Use the code "12aiajp" for 37% off. You must purchase the book through http://manning.com/rademakers2/. You can download a sample chapter from the Alfresco Wiki.
Thank you Jeff, right now I bought the book and I feel excited because it covers several topics that sure will be needed for workflow's building with code examples.
