L., I just graduated from College (Montana State University) with Bachelor of Arts in teaching English language and literature (I was teaching English as a Foreign Language in many countries for eons, but now I added literature teaching, too).
OUR ALL TIMES FAVORITE CLASS of Non-Fiction Creative Writing was the one that we took from Doctor Danell Jones. She's the BEST! Now, she wrote the book on how to write,
http://www.amazon.com/Virginia-Woolf-Writers-Workshop-Les...
and she also used the book
http://www.amazon.com/Writing-True-Craft-Creative-Nonfict...
We did almost all the exercises from this book.
Now to prove you how good was the class with these books, I will tell you this:
We had 18 students in her class, and out of them, at the end of the semester when we had to part, we got so awfully sad that 14 of us decided to keep meeting for workshops with our own writings, no matter that it would not be an official class anymore.
Guess what? This workshop, 3 years later, IS STILL ALIVE! People from Doctor Danell's class (that's how we lovingly call her), us aspiring writers that is, AND DANELL herself also, we still come together, and we share the writings online, comment, critique, argue, cry and laugh as we are one great close family, sharing our stories, essays, and such!
If you buy these above named two books, and add the one I give a link to below, this money will never be wasted,
because of course, you need to add the classics about how to do good writing, which is
A Room of One's Own
by Virginia Woolf
http://www.amazon.com/Room-Ones-Virginia-Woolf-Lighthouse...
I teach literature classes for middle and high school kids, and they absolutely love our writing workshops that I set them up: we already win over the kids who thought they hate writing and literature; one kid told me he hates it, and even refused to write his first one-page free-writing draft in September, and now guess what, right now they have an assignment to write a fable 1-3 pages long, and this kid comes to me concerned that he didn't have time to print his handwritten story out in time, because it is 15 pages long!
I wish your husband to enjoy this hard work of writing lessons to the utmost! If he has talent he will publish very soon! If his talent needs support in developing professional skills, with perseverance in accomplishing the lessons suggested in these books, and especially following Virginia Woolfe's and Danell Jones' advice, he will get there soon!!!!
All the best!
M.