Linkedin Advertising for B2B

If your average deal size is less than $12-15K, LinkedIn may not be the ideal vehicle for lead generation;
Next, ditch LinkedIn’s first two suggestions regarding ads. Instead, remove the audience expansion box, and do not use the default bidding strategy. If both those are engaged, you may as well be throwing your money away.
AJ Wilcox has found that despite the perceived cost difference between other ad platforms (Facebook, Google), LinkedIn is the best and most economical way to target for B2B, reaching exactly the people you want to reach, when you want to reach them.
Image posts tend to garner the most engagement for small and large business accounts on LinkedIn, whereas video posts tend to garner the most engagement for midsize accounts, according to recent research from Social Insider.