Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: wait for the cliff notes version

I picked up this book because I was interested in the trials and tribulations of product development. It turns out that half the book is about Solly Angel's life, which I had no interest in spending time with. Regarding the product development portion of the book....I am astounded that anybody with a degree in architecture design would make the lame brain mistakes that Angel makes from the get-go. I only read half the book, but my advice to those whose interest is in product design is to flip through and read a bunch of pages to get a feel for it before buying it.