The most common cancers:

brain tumors
breast cancer
lung cancer
metastatic cancers
prostate cancer
skin cancer
throat cancer  

A complete list with specific types of cancer can be found on the pull-down menu of AboutCancer.com, in addition to a discussion of cancer diagnosis, anatomy, and cancer imaging.

For a general discussion of the three main treatments go to: chemotherapy, radiation and surgery.

Examine cancer statistics, frequency and survival, and online cancer calculators.