‘It’s been brilliant working with you…You have been a complete Godsend.’ 

–  Lorraine Pascale


‘I know I can trust Diana to deliver the goods and best of all she’s cool in a crisis.’ 

Charlotte Bush, Director of Publicity and Media Relations, Cornerstone Publishing, The Random House Group


‘Thanks a million, the PR has been fantastic. You have ticked every box I had in mind, and created a best seller to boot. We’re really happy here at Penguin.’
– Clare Pollock, Publicity Director,  Penguin Books


‘Epic publicity… Everyone keeps talking about it in house. So thank you. An amazing job!’
Hannah MacDonald, Ebury


‘You are now known in our corridors as the Queen of the Celebrity Auto.  Congratulations on a wonderful campaign.’
– Rina Gill, at the time – Publicity Director of Century


‘Colbert Macalister have been a vital part of our winning team for more years than I care to remember. They helped us to be voted Small Publisher of the Year and their campaign assisted our book BEING JORDAN becoming the fourth best-selling autobiography since records began. Plus they are very nice people!’
– John Blake, John Blake Publishing


‘Colbert Macalister have been the best PR firm I have ever dealt with, they have made the publication of my fourth book an absolute joy and when press coverage was hard to get they managed to do all sorts of wonderful things to get the media buzzing. They cannot be recommended highly enough.’
– GP Taylor, author