Non anonymous writing

I have a forthcoming gallery art art exhibition. I need an essay to go in the catalogue- this is not going to be ghost -writing . The writer's name will be published in the catalogue. I need someone who is known to write in this way- they have been writing publicly in the past and their work can be found if anyone to find it, with heir track record as a writer? There is a theme for my exhibition but they have to choose their own topic to fit in the theme/subject matter for discussion. The essay must be interesting and written in simple language for anyone to understand