Update March 18th: Since this blog post I have added no less than 34 new reviewers. I think that must be enough for now. I don't want too many people giving me feedback, because I would not be able to guarantee having the time to process all their comments. Therefore I have stopped accepting more reviewers.
I am rather satisfied with the progress on my book, which is now 58% complete. True, my velocity says I am facing a slight delay of +/- 2 weeks. But it's nothing to worry about, as my deadline (July 1st) is utterly self-imposed, and there are some chapters I can easily skip.
If you are interested in reviewing the book while I'm writing it, then you are still welcome to join!
Chapters 1, 4, 5, 6 and 7 are finished and ready to be sent to the publisher. But there will be one final review pass when the publisher has reviewed my manuscript, so you can still read them and send me your most important comments.
Chapters 8, 9, 10 and 11 are still in the review phase (until March 19) and your comments on these are more than welcome.
Chapters 12 and 13 are almost done and ready for review (in about one week).
Chapters 2, 3, 14, 15, 16, 17 and 18 have yet to be written (of which chapters 14 and 15 are optional, so I might decide to skip them).
To all reviewers: thanks for your feedback. You are all awesome!