ADempiere 3.6 Cookbook
Purchase at Packt UK. Highlights: Integration to many apps such as Mondrian, Email, PayPal, Web Services, VirtueMart, ActiveMQ, JasperReports and Equifax. Some review here
ADempiere 3.4 – ERP Solutions
Purchase at Amazon.com. Highlights: Step by step real life complete case implementation. Relevant even for latest 360LTS. I strongly recommend it – Redhuan D. Oon
Open Source ERP
from ADempiere, top world SourceForge project red1 writes about the community’s work. Get from Amazon.com or with the author‘s autograph.