Graphic design contains underlying principles that govern the most important aspects of great design. These principles create the acronym C.R.A.P. which stands for contrast, repetition, alignment, and proximity. The well-balanced combination of these principles tends to create design which most people would consider visually pleasing.
To Say a design is CRAP is quite the compliment (we suggest not trying this with your designer). The original term was coined by writer Robin Williams in his book “The Non-Designers Design Book” written in 1994.
Here is an online pdf version of the book:The Non-Designers Design Book