'Anti-guru' Sarah Knight explains how to say no more often and why doing so will change your life for the better.

Saying no can be extremely difficult. Social pressure and the fear of letting people down are powerful forces, and it's easy to find yourself agreeing to things you don't actually want, even if you only realize it afterwards.

Sarah Knight is the bestselling author of the 'No F*cks Given' life advice series.

In F*ck No! Knight explains how to work out whether you want to say 'no' and provides numerous examples of how to say it in different situations.

By getting more comfortable with turning requests down, you'll lessen the obligations that come with thoughtlessly agreeing and free up time in your life for the things you really care about.

You'll learn to respect yourself more by placing a higher value on your own time and desires.