Stephen Covey, author of the classic "The 7 Habits of Highly Effective People," talks during an event in the early 2000s. His is one of the best leadership books ever written. Management professionals ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. It's always high time to ...

Do back-to-back meetings, conferences, and crowded, noisy networking events drain your energy? How can you maintain your balance if you're an introvert? David Hall has the answers in his new book, ...