Robert Perry

“I wrote it to share the experiences and all the things I had to learn, with parents, coaches, any woman who works in a man’s world. In the last five years I’ve sort of found my voice. I’ve found my confidence and I enjoy telling the story.”

Not that Murray will be any less focused on the game when she sits down at Wimbledon on Monday, and her inner Judy will no doubt be screaming like a banshee and waving her arms above her head with abandon, but on the outside everything will be cucumber cool as she’s learnt over the years what it is to live in the spotlight.

“Yes I will be at Wimbledon this year,” says Murray, who won’t be drawn on how Andy and Jamie might perform after their contrasting results at Queen’s in the run-up – Andy crashed out in the first round while Jamie won the doubles title – saying simply: “I never make predictions. The strength and depth in the men’s game is incredible but Jamie and Andy will both be contenders in their respective events.”

While Murray will be at Wimbledon, she doesn’t watch them much nowadays. “I got fed up with all the years and years of travelling, 11 months on the road. I don’t go to matches very often now. I started to find in the last two or three years, getting close to the top and then being number ones, it was very stressful watching them, because of the expectation. It’s like the fun and the adventure of the challenge of getting there, and then it’s like… [she exhales, letting off steam].

And when she’s not there in person she’ll do anything rather than tune in and watch them.

“I haven’t watched them on TV for years. I hated listening to the commentators and watching with the sound off isn’t much fun. You feel powerless, so I might go for a swim or if I’m in the house, I don’t answer the phone. I feel sick the whole time they’re playing, whether I’m there or not. It really would be lovely to be able to enjoy it more, but I can’t, unfortunately.”

After Wimbledon, however that turns out, Murray is back in the public eye with her Edinburgh Fringe Festival show In Conversation With Judy Murray and an Edinburgh International Book Festival appearance, Holding Court.

Criticism of Murray’s reaction on the sidelines was always unfair anyway. She’s a former Scottish tennis international and Scottish national coach, and set up the Scottish Development School, that produced four Davis Cup and one Fed Cup players, including Grand Slamwinning sons, Jamie and Andy. She’s lived and breathed tennis her entire life. Throw in a coach’s technical know-how and a parent’s justifiable pride, why shouldn’t she shout and clap? Anyway, Judy Murray has great arms, though she’s not convinced.

“The year the BBC were doing me clapping in slow motion…” she shudders. “I used to clap above my head sometimes because when the kids look up and there’s a big crowd they don’t immediately see you. Anyway I had a vest top on and everything was like wobble, wobble… it doesn’t matter how thin or not you are. It was horrible, horrible!

“But you would never want the boys to know you were upset by it so you just put up with it. So when I got the Fed Cup job in 2011 it was the first time of someone recognising I was a good coach and not just Andy and Jamie’s mum. Then in 2012 Andy started working with Ivan [Lendl] and won the Olympics, the US Open and Judy Murray at Cromlix Hotel near Dunblane, which is owned by her son Andy