It's taken way longer than I thought it would, but I've finally got The Art of the Plan written and published. The e-book version is available from Smashwords in all the useful formats.
The printed version is still in process. I'm guessing early September for release.
The book covers most of the topics I've been writing about in The Art of the Plan blog – from identifying crystal-clear objectives and requirements through to modeling and simulation using Probability Management techniques to produce realistic project plans. There's an Excel workbook loaded with examples to go with it and, of course, it uses SDXL.