This is one of the best book about ideation on the market. And as an ideation specialist in Switzerland I have a collection with about 100 books on innovation and creativity in three lanquages.
Why give only three stars? Because you can still have over 80% of the same content (both tables of contents are quite identical) for only 4 USD (as per 6th January 2007) if you buy by Amazon the used book "Brain Boosters for Business Advantage" from the same author and edited in 1994.