I heard from its authors that "NetBeans Platform for Beginners" is selling really well. If you look at the Leanpub Bestsellers page, you'll see it's second in "earnings in last 7 days". And the reviews are really good, too, for example, here's a review from a newbie to the NetBeans Platform:
And here's the review of a very experienced NetBeans Platform developer:
And there's a growing list of other reviews at the bottom of the book page, check it out, also from Benno Markiewicz and Michael Bishop.
Would be great to support this wonderful effort by... writing reviews of it and blogging about it too. I'm going to send them (email@example.com) a review of the book, so that they can add it to the great set of reviews they have there already. Will you too, whoever you are reading this blog? Small and useful weekend task in support of the NetBeans community.