I’m writing an essay about illustration but I keep going off at a tangent. I have to talk about how signs and signifiers, icons and symbols affect the images. But I’m very interested in the causes of homelessness and that keeps creeping into the essay. I even quoted a poem by a poet called Seamus Fox, called ‘No Homeless here’. I had to take it out. I’ve also trawled through numerous books to try and explain semiotics and I’m really struggling. What do I do? I just keep pushing and trying. Sometimes digressing… Hard work.