If you're confused, you might want to read Richard Dawkins's general rebuttal to this type of twaddle: http://old.richarddawkins.net/articles/824

If you're thinking of getting the annotated version, another classic in the same spirit is The Annotated Alice by Martin Gardner. It exposes a lot of double entendres, mathematical games, and other historical stuff about Alice in Wonderland that shows how much of a playful mathematician Lewis Carroll was.

Or even easier: ipython >>> from django.http import * >>> HttpRequest?? # prints out source code for HttpRequest

--- Books ---

Tuned In - great book, describes how to really understand user perspectives as opposed to 'inside-out' development. The book's based on many principles taught in the Pragmatic Marketing prodm course.

Inspired (Marty Cagan) - good cross section of PM, covers People, Process and Product separately. Startups to large companies.

The Art of Product Management - a series of articles, describes software PM in startups to larger companies. More about the role of PM rather than product itself.

Rules for Revolutionaries - Guy Kawasaki's book, half entrepreneur morale book and half how to create a product quickly.

--- Blogs ---

Cranky Product Manager - crankypm.com

Silicon Valley Product Group - svpg.com (Marty Cagan's blog)

--- I would avoid: ---

Value Prop (Jose Palomino)

Will It Fly? (Thomas McKnight)