I really liked this book. A very down to earth approach on this unique journaling method, which is essentially kind of shorthand, and certainly can go long form content.

The idea is to keep your entire life in this journal, ideally paper for the first couple months until you get the flow. It does require planning/reflection times to move things around between the lists. And carry the journal with you almost all the time. Never know when you might get an idea. One can master it by making it personal to their needs - he has a couple examples in the book.

The book has occasional pictures which make the concepts pretty clear. There is a member-paid forum on the web site if you want to meet other fans.

Overall, the method is not complex, and can help people organize their thoughts and plans. Liked it!