• Master Class in Figure Drawing - robert beverly hale
• Drawing Lessons from the Great Masters -robert beverly hale
• The Practice and Science of Drawing - harold speed
• Glenn Vilppu Drawing Manual - glenn vilppu
• All andrew loomis books, and
• George Bridgman books(small books, not the complete single book edition).
• all burne hogarth's books.
• the artist's complete guide in drawing the head - Maughan
• the human figure - vanderpoel
• Harley Brown's eternal truths for every artist - harley brown
• Hawthorne on painting - charles hawthorne
• artistic anatomy - paul richer

Read more: http://www.conceptart.org/forums/showthread.php/41153-what-can-you-say-about-Nicolaides-quot-The-Natural-Way-To-Draw-quot#ixzz4Rpg1nJ5b