Philosophy is inescapable, because all thoughtful persons confront philosophical questions at some point in their lives, and nearly everyone is guided by philosophical assumptions, even if unconsciously.
Philosophical training enhances our problem-solving capacities, our abilities to understand and express ideas, and our persuasive powers. See
Why Study Philosophy?
As the systematic study of ideas and issues, philosophy may examine concepts and views drawn from many perspective and fields.
For more information on philosophy in general, see the American Philosophical Association's Philosophy: A Brief Guide for Undergraduates and The Philosophy Major,