I have a large and mostly dusty stack of art books that I have accumulated over the years and most of those books have challenges, suggestions, techniques, how to's and exercises. My intention is to go through them, one by one in order.
I am starting with "One Painting a Day" by Timothy Callaghan. (This one is out of order! I got a little behind and confused while working on other/paying projects!) Notice the book on the table. It's the one mentioned above.