Read: Fundamentals of Object-Oriented Design in UML

Recommended from the recent discussion about the future of PEAR is the above Addison-Wesley book

Discout Books: Bookpool.com

Through a round-about way I recently stumbled upon Bookpool. Find Teehcnical (read: computer) books at discounted prices. For example, Design Patterns: Elements of Reusable Object-Oriented Software they list at $39.50, claiming a 28% discount off the list of $54.00. For fun I popped on Amazon and found the same book, listed at $54.99. Nice.

History: Engineerings and Inventiveness

From a series of links, I found myself at this listing at Amazon.com. Seems like a worthy addition to the history bookshelf.