Here's where people who've read CrcCard books and used them in design recommend to the neophyte which books shine: http://images.amazon.com/images/P/0201895358.01.TZZZZZZZ.jpg TheCrcCardBook by David Bellin, Susan Suchman Simone ISBN:0201895358 http://images.amazon.com/images/P/0136298257.01.TZZZZZZZ.jpg DesigningObjectOrientedSoftware by RebeccaWirfsBrock, BrianWilkerson and LaurenWiener. This book introduced the concept of ResponsibilityDrivenDesign that CRC Cards are based on. It's amazing to me that an OO book written a decade ago can still be this vital and useful. -- JohnBrewer ISBN:0136298257 ----- CategoryCrcCards CategoryBook