What are good books for medical students doing Rad Onc rotations?
The top three books for residents and med students are:
1. The Hansen/Roach Handbook
2. The Haffty/Wilson Handbook
3. Radiation Oncology: A Question-Based Review
You should peruse each and determine which complements your learning style best.
Also for a broader overview of cancer management a good textbook (available for free online) is Cancer Management: A Multidisciplinary Approach
Another superb (free) resource is the Radiation Oncology Wikibook.