This has pretty much every chapter and subchapter we expect to have in the final book, but my editor and I are still publishing some rough edges. As O’Reilly says on their website:
You’ll receive updates when content is added, as well as the completed ebooks. You get free lifetime access, multiple file formats, and free updates.
You can read the original article at http://www.netconsonance.com/2014/03/learning-mcollective-available-in-early-release/. Comments are welcome here or there as you please.