Top Ten Books on Oil Painting- March Workshop

This is a list of Ten Books on Oil Painting that I recommend to students in my workshops.
I am only going to be offering one five day workshop in plein air landscape for oil painters this winter.
There are a few more arrangements to make before I list the dates and enrolment info, but it will be the first or second week of March '08. Monday through Friday. Five full days of painting landscapes around San Miguel de Allende, Mexico.
If any of you are interested you can email me at frank@frankgardner.com. I will be posting the dates and more information here soon. Class size is limited.

I have read each of these books many times. My copy of "The Art Spirit" has been read so many times that it has fallen apart and is now just loose pages gathered together.
Emile Gruppe is one of my all time favorite artists and his book "Gruppe on Color" is the most cherished book in my oil painting library. His books are out of print but they are worth buying used.

1. "Hawthorne on Painting" Hawthorne - Dover
2. "The Art Spirit" Robert Henri - Harper and Row
3. "Gruppe on Color" Emile A Gruppe - Watson Guptill
4. "Gruppe on Painting - Direct Techniques in Oil" Emile A. Gruppe - Watson Guptill
5. "Brushwork - A Guide to Expressive Brushwork for Oil Painting" Emile A. Gruppe - Watson Guptill
6. "Carlson's Guide to Landscape Painting" John F. Carlson - Dover
7. "Composition of Outdoor Painting" Edgar Payne -Payne Studios
8. " Landscape Painting Inside and Out" Kevin Macpherson - North Light Books
9. "Fill Your Oil Paintings with Light and Color" Kevin Macpherson - North Light Books
10. "Alla Prima" Richard Shmid - West Wind

I decided to limit my list to my ten favorites. Do you have other favorite books on oil painting techniques?