Tapestry 4 Tutorial

During the last few weeks, I've been searching for tutorials for Tapestry; the Java front-end web framework I use in my main project right now in IBM (A very nice and mature framework, you have to check it out). Frankly speaking, the resources for Tapestry (either books or articles) are not much and not easy to find, also, most of the tutorials I found are not comprehensive and contain many missing information. At last, I found the BEST TAPESTRY TUTORIAL on Devshed starting from absolute beginner's level to advanced developers, here is its URL, I use it a lot and I consider it among my main resources for developing with Tapestry, Enjoy!