Most employers report that today’s colleges and universities graduate some of the smartest students this country has ever seen. However, those same employers complain that many new hires lack a series of critically important professional skills. “I can teach a junior associate how to draft an iron-clad contract,” senior law partners have told me, “but I can’t teach a new hire how to think through a problem or behave in front of a client.” If you need to position yourself as a successful new professional, you’ve come to the right resource. Mary Crane has developed a list of the 100 most important things you need to know in easy-to-absorb, almost tweetable chunks. You can’t know everything. But tackle the “100 Things You Need to Know” about professionalism, and you’ll perfectly position yourself to succeed at work.