Ever since I found out that Time to Change, the campaign to end mental health discrimination, had created a pledge wall, I have been planning to add a vow. Today I chose one.

"I pledge to portray mental health sensitively in my books."

Why did I pick the portrayal of mental health in my books?

I considered several pledges, for example talking openly about mental health, but lots of people like Denise Welch, Gary Beadle and Liz McClarnon have vowed to talk more about the issue.

The portrayal of me...