If you aren't already aware of "The Art of" Series published by Graywolf Press you might want to check it out. Here is how Graywolf describes their stellar series:
"The Art of Series is a line of books reinvigorating the practice of craft and criticism. Each book is a brief, witty and useful exploration of fiction, nonfiction or poetry by a writer impassioned by a singular craft issue."
Some of the titles are:
The Art of Description by Mark Doty
The Art of Time in Fiction by Joan Silber
The Art of Attention by Donald Revell
And there are plenty more. Honestly, I am in love with this series. Click here to learn more.