Mark Williams, aka 'Mr. LinkedIn', is the host of one of my favorite podcasts, LinkedInFormed - I've listened to dozens of episodes, and much of what I know about LinkedIn I know from Mark.
In this episode, Mark provides tips on key aspects of the LinkedIn profile: the headline, the photo, the about section, and the experience section.
At one point I mention a specific episode of LinkedInFormed on the types of posts that engage. That one is Episode 242, and it would be a great episode to start with if you haven't heard this show before.
You might also check out Episode 211 of Unleashed, in which I share my perspective on each aspect of the LinkedIn profile.
Unleashed - How to Thrive as an Independent Professional