I browse Kickstarter when I'm bored, because it's amazing to see how creative and inspiring people are. I found this amazing project that is pretty much a how-to manual AND workbook to drawing, specifically for comics books, especially superheroes. It's beautifully created too look and feel like a Moleskin journal, so it's extremely portable, unlike all those other how-to-draw books I see in Barnes and Nobles. The pre-order is $25 (with $4 shipping in the US), which I think is a pretty reasonable price. The creators estimate a late December/early January delivery date, so if you're lacking ideas for a good Christmas gift for a beloved potential artist, check it out!
IDRAWCOMICS