The book is essentially "Computer Programming for Dummies" without actually having the honesty to title it as such. (There probably is a "dummies" book for programming by now; I'd rather not know about it.)

There is not one "design pattern" in that book which isn't obvious, intuitive, or flat out trivial to anyone who has written more than a few hundred lines of code.

Alot of the "OO"/DP mentality is the "discovery" that most computer programming work is highly repetitive and generally uncreative. What is left unspoken is that this is true *ONLY* because people continually ask the same "questions" of the computer again and again. Thus the "patterns" emerge: what else can one expect but the same solutions to arise when the same questions are asked?