I found Russell Stutler’s Book About Sketching this morning in my early early early in-the-dark wishing-for-coffee (M makes ours) and joyful-that-taxes-were-done meanderings.
Not all “free” books are decent. While there are dated links, Stutler’s his material is fresh. I recommend visiting and looking around — I am buying a couple of different pens from Jetpens due to his recommendations (and the second gift for day two finishing taxes.)
I’ll tell you how I like them after I play with them.
A sample from his pages:
He does a demo page of a sketch from start to finish, which is a really good way for artists to show how they do things!
I will go back and look around other areas of his website and blog — highly recommend!