Jamal Edwards falls into the category of 'teenage sensation', having built an impressive social media empire from the age of just 15.

Now aged 22, he runs an online youth broadcasting operation called SB.TV, which claims more than 170 million YouTube views and he has also been the subject of a Channel 4 series called Bedroom to Boardroom.

Self-belief is aimed at a younger audience and has an empowering message about the possibilities of making it in your chosen field.

Written in a pithy and engaging style, Edwards suggests you give yourself permission to be someone else or “fake it ’til you make it”. If you have a job, go up to the executive floor and talk to people up there, say “hi” and get used to being around powerful people and seeing how they act.

Positive thinking abounds in the book and he has lots of simple yet sound advice on shaking off negative thinking. If you find perfectionism stops you from trying new things, give yourself permission to be bad at them until you develop your talents.

Make a point of seeking out positive people is another piece of advice.