I bought the "Hands on Dark Basic Professional" books several years ago and they were very well done in my opinion, and make a great reference. However, I just looked at vol.1 and it's copyright is 2005. By that time DBPro had been around a few years. I would expect any such manual for Reloaded to be at least a couple years away, since things at this point can change at the tip of a hat. I think for the interim the Community Guides, video tutorials, etc. should be sufficient, as they can be edited and updated easily.
MAME Cab PC: i7 4770@3.4Ghz (passmark 9945), 12GB RAM, Win 8.1/64, GeForce GTX645 (passmark 1898); Shiny new laptop: i7 4800MQ@2.7Ghz (passmark 8586), 16GB RAM, Win 8.1/64, GeForce GTX870M (passmark 3598); Old laptop: i5@2.3Ghz, 8GB RAM, Win 7/64, Intel 3000 graphics