Tony Myatt was recently interviewed by Henry Levinson-Gower on the subject of his new book, The Macroeconomics Anti-Textbook . This is one of The Mint Interviews, part of a broader project to promote pluralism in economics.
The book has been available in Kindle form for a couple of months and is available in print in the UK and, as of today, in the US. It will be available in Canada in mid January.
While many of the anti-text parts of the chapters have been substantially rewritten, probably the major change is the scrapping of the old Postscript on the financial crisis (which seems a long time ago now). It has been replaced with a new Postscript on 'A case study of climate change and the textbooks'.