Genre: Sachbuch / [[productivity]] Rating: 5/5 In the beginning I really didn't think much of the book. I considered myself an OmniFocus pro user and I didn't want to learn a whole new system and only hoped for some quick power user tricks. After about one third it dawned on me that this book has the potency to deeply alter how I use OmniFocus. So I reread large parts of it, try to better understand what Kourosh's philosophy is like, went back and forth and at some point it all made so much sense. I read the whole 1000 pages and consider my OF set-up now way better than before. I got from just ticking boxes to a productivity systems that really supports my work. Thank you, Kourosh! Only downside is that at places the book feels a little unorganized as topic take turns I wouldn't expect. Still a five stars book (but only if you commit to read, understand and practice a thousand pages (Took me >4 months to get through it)!