Last week a young artist who I thought was going to be a painter, and who had gone through my materials gave me a call. He had switched from painting to photography and had just got a scholarship to study photographic art in Italy. He called to thank me because he said that studying my materials played a big part in him winning the scholarship.

To answer the question:
These courses will be of great benefit:
1. All Notan courses
2. All Design and Composition Courses
3. All Visual Music and Poetry Courses
4. All Color Courses

These courses will have a lot of useful ideas in them for photographers (provided you think creatively!):
5. All Brushwork courses (think texture!)
6. Observation courses (think 'how to look')
7. Form (a photograph should show form, just as a painting does, so this is probably important).

The following courses are not as particularly relevant to photography
8. Drawing (not really relevant)
9. Organization (not really relevant)
10. Process (not really relevant)