Seth Godin has a note today about the the ideabook...
Not easily available in the US. Worth the hassle: theideabook.org. (tip, press on the "English" button in the bottom right hand corner).
You can even download a few sample pages from the book (english version).
It reminds me of Roger von Oech's creative thinking books, "A Whack on the Side of the Head" and "A Kick in the Seat of the Pants," but with more liberal notes and scribble pages included.
I first received a copy of "A Whack..." from an old friend at Apple years ago, the same copy sits dog-eared in my bookshelf at work (there's another at home). It is one of my favourite books -- and one that is timeless -- that I often share with teams internally.
A good read and recommended.