I got the Manga Artist's Workbook for Christmas! This has been my first ever Christmas present (barring some games and candy I got in school, and decorations for our old christmas tree - but its special as my friend actually put the thought into making me a better artist!)
So, I am going to post all the exercises I complete and I'll link a folder of these works here.
It's interesting to learn by following the instructions - and adding a few surprises along the way!