What is difference between clicks and sessions?

A user may click your ad multiple times. When one person clicks on one advertisement multiple times in the same session, AdWords records multiple clicks while Analytics recognizes the separate pageviews as one session. This is a common behavior among users engaging in comparison shopping.

A click can be done several times in a single session but a session involves definite time as counted within a specified duration.

How many times your advertisements were clicked by users ??

When you click on advertisement than click is count. Session is, when you don't refresh page then count one sessions.

The Clicks column in your reports indicates how many times your advertisements were clicked by users, while Sessions indicates the number of unique sessions initiated by your users.

Click is count total dont care about user.

I like Andy Anderson's answer, thanks for sharing.

First of all The Clicks column in your reports indicates how many times your advertisements were clicked by users,after that while Sessions indicates the number of unique sessions initiated by your users website or other.

A click is visit to the site regardless of time, sessions are used to measure time on site. Too low of time on site (under 9 seconds) the session is considered bounce or non human traffic. High bounce means your site is not popular enough for people to stay and read it. This is why Traffic exchanges with short counters under 10 seconds hurt your website.

A click can be done multiple times in a single session but session for some defined time is counted as one session.

A user may click your ad multiple times. When one person clicks on one advertisement multiple times in the same session, AdWords records multiple clicks while Analytics recognizes the separate pageviews as one session. This is a common behavior among users engaging in comparison shopping.

Click is count total dont care about user.

the session is when you refresh the page it starts a new session, and click is when user clicks on an advertisement in a single session.

The Clicks column in your reports indicates how many times your advertisements were clicked by users, while Sessions indicates the number of unique sessions initiated by your users.

A user may click your ad multiple times. When one person clicks on one advertisement multiple times in the same session, AdWords records multiple clicks while Analytics recognizes the separate pageviews as one session. This is a common behavior among users engaging in comparison shopping.

You have to first explain what you are talking about. What kind of session & what are you clicking on? A traffic exchange session would start with a click at your first web page & last for as many clicks you like to provide during that session. The TE may provide rewards & incentives to keep you clicking all day ... :)