Click the me icon on the top of your linkedin homepage. Pick out settings & privacy from the dropdown. Click account options at the left rail. Beneath subscriptions & payments, click trade next to top rate subscription. Explore and pick out the plan that satisfactory meets your needs.
LinkedIn Premium for general users starts at $24.95 per month. These plans include features such as InMail, seeing more profiles when you search, access to premium search filters, ability to view expanded profiles on LinkedIn, and more.