SIRIUS B is an organization committed to Sirius-ly good programming targeted at underrepresented groups in STEM. Please click through this website to learn more about what we are doing, what we hope to do, and how you can participate/help.
See our primer for students interested in astronomy, Astronomy as a Field: A Guide for Aspiring Astrophysicists below:
You can also find a copy of the book on arXiv.