Spon's Mechanical and Electrical Services Price Book

Hi everybody,
I'm looking about your feed back about the book:

*. Spon's Mechanical and Electrical Services Price Book 2007.

What woould be the benefit to have it?

 

[kenvlach]

See

http://www.amazon.co.uk/gp/product/0415393876/

 

[Jabirbht]

Thanks for the answer.