Knowing how to draw is a critical skill to help you create 3D graphics and animation. It's very helpful to be able to quickly document your ideas, no matter where you are, without the need for a computer. However, learning to draw, or improving your existing drawing skills can seem like such a huge undertaking, especially when you want to be focused on creating 3D graphics.
Well, one possible solution is to find a way to learn and practice drawing in little bite-sized lessons.
Here's a free website that offers such a thing...Drawspace.com.
Drawspace, created by Brenda Hoddinott,
offers downloadable and printable drawing classes featuring Brenda’s unique styles of drawing. Students of all ages, levels, and abilities have praised the simple step-by-step instructional approach. This site is recognized as a resource for fine art educators, home schooling programs, and educational facilities throughout the world.
Check it out.
Note: Drawspace.com has been added to the Blender Toolbar under Tutorials -> Drawing.