Here is my current favorite example of the title page of one of her books. (All book photos in this post are from this book: New Design in Weaving by Donald J. Willcox.)
American Tapestry... shouldn't that book be about weaving?)
In the example below, she has drawn a cartoon in response to the text.
Marian often wrote notes that seemed to have nothing to do with the actual book itself. Notes to herself, things she wanted to remember. Almost every single one of the several large boxes of her books I have are inscribed on the title page, "Rare book, out of print, do not loan out" or some variation there-of. This was annoying at the time I wanted to borrow from her library, but I have to respect her love for her books at this point.
This book was published in 1970 and is full of images of off-loom weaving. Marian did plenty of this off-loom stuff herself (see example at the end of the post), but she had some commentary in this book about the results.
As noted in a prior post HERE, Grandma wove the piece below for a medical clinic... my mother's pediatric practice actually. So she may have thought that some of those weavings in the book above were made for or by kindergarten children, but that was her favorite means of expression. (The apple doesn't fall far from the tree, does it? Not that I'm doing weavings on hula hoops, but if you've ever met me you might agree that I'm a bit of a nut myself.) And she probably did weave this in the 70s.
I bet it was a heck of a lot of fun to make too.