Required:
Introduction to Physical Oceanography, Robert Stewart, 2008
Introduction to Oceanography, Paul Webb
Other options:
While you will find me referencing the textbooks above throughout the course, this is a 101 class which means you can learn this information in a variety of ways. You can read other oceanography textbooks, high quality websites or online educational sites such as Khan academy. I will provide additional resources on each module page, but find a combination that works for you personally.
SCRIPPS Institution of Oceanography