The Drawing Book, ed. Tania Kovats
http://www.amazon.co.uk/Drawing-Book-Survey-Primary-Expression/dp/1904772811/ref=sr_1_1?ie=UTF8&s=books&qid=1255974864&sr=1-1
The Drawing Book by Sarah Simblet
http://www.amazon.co.uk/Drawing-Book-Innovative-Practical-Approach/dp/1405341238/ref=sr_1_2?ie=UTF8&s=books&qid=1255974864&sr=1-2
Anatomy for the Artist by Sarah Simblet
http://www.amazon.co.uk/Anatomy-Artist-Sarah-Simblet/dp/0751334413/ref=pd_bxgy_b_text_b
Experimental Drawing Techniques by Robert Kaupelis