Philosophy is an amazing subject - both broad and deep. In essence it aims to understand the complexities of the human condition and encourages us to ponder our place in the universe.
Ultimately we all want to know the answers to life's most important questions.
The study of Philosophy, in any capacity, will help you develop lifelong skills. For example, it can enhance one's ability to appreciate different views, to investigate difficult questions and to form original, creative solutions to problems. To get the most out of the subject it merely requires that you approach it with curiosity and an open mind.
This is by no means intended to be a definitive "best of" list, however, they do all come highly recommended.
So if you think you're ready to start doing some soul searching these books are a great place to start!