11:31 PM, Sunday February 13th 2022
The answer varies a lot depending on what type of drawing you want to pursue.
Before getting to a few that I know of I'll point out that if you do pursue other learning materials at the same time that it requires adjustment to the 50% rule mentioned in lesson 0.
Ultimately you want to split your time 50/50 between learning and drawing for yourself, this means if you're spending an hour on Drawabox work, you spend an hour (or however long you typically spend) drawing for yourself as well. If you add other lessons into that you need to make a choice between two options, splitting that hour into 30 minutes for Drawabox and 30 for your other material of choice and then an hour for yourself. The other option being an hour for DaB, another hour for your other material and then 2 hours for yourself.
Apologies for the lengthy explanation but we've seen plenty of people try to take on too much at once and burn out because of it so we try to make it clear that it either means slowing down your progression or taking up lots more of your time.
With that out of the way there are some recommendations here and here. One of the books mentioned (How to Draw) is discussed a bit more in-depth here.
Some other recommendations are:
