The DC Comics Guide to Pencilling Comics: 9780823010288: Janson, Klaus: Books - Amazon.com
DC Comics Encyclopedia All-New Edition: The Definitive Guide to the Characters of the DC Universe: Manning, Matthew K., Irvine, Alex: 9781465453570: Amazon.com: Books
Amazon.com: The DC Comics Guide to Digitally Drawing Comics: 9780823099238: Freddie E Williams II: Books