Frank Frazetta was a powerfully resourceful illustrator and artist who respected drawing with pencil and charcoal as a way to show narrative concepts for a variety of clients.

These and all images on this blog are shown for educational purposes.

 Prof. Onli, teaches studio drawing at the Harold Washington College in Chicago after a career as a freelance major market illustrator which depended on his drawing skills and visual ideas.
Image Copyright Turtel Onli 2016

 Commercial clients demand to see samples at each step in the process. 
Copyright the Frank Frazetta Estate

This is a simple thumb-nail for a horror book cover.