A former LinkedIn employee explains the worst mistakes you can make with your profile photo

They say don't judge a book by its cover.

But your LinkedIn profile photo can say a lot about who you are, according to Koka Sexton, a former LinkedIn employee who's now running his own company called Social Selling Labs.

Sexton recently published a blog post listing the 8 biggest mistakes people make on their LinkedIn profile photos, and says avoiding these mistakes could dramatically increase the chances of landing your dream job.

"Your LinkedIn profile picture is a decisive element for shaping your online presence and creating new career prospects," Sexton writes. "Potential clients do shape a first impression about their prospective employees by their profile pictures."

These are the 8 biggest LinkedIn profile photo mistakes you should stop making, according to Sexton: