Matt Haig

We often joke about men moaning about being ill, whether it's man flu or anything else. We want them to be silent and strong about these things. And that's quite dangerous when it comes to depression, because talking about it helps. People bottle it up until it's too late.

When you write your first book aged 25 or so, you have 25 years of experience, albeit much of it juvenile experience. The second book comes after an extra year sitting in bookshops. Pretty soon, you begin to run on empty.