If you are looking for some introductory material to get you going, take a look at some of the material provided herein these pages taken from the American Drawing Book (1858), which still has some good information for the beginner. It is currently in the public domain in the USA.
If you are in the Saint Louis, Missouri area and haven't yet taken the chance to get to know us and draw or paint with us at one of our regular venues, please do. Ours is a very friendly and diverse group with artists who are at all levels of learning. You can also check out or events for free by joining our Meetup Group.