KELLAN MacINNES was born in 1963 and began hill walking when he was a teenager. For the past 24 years he has lived with HIV/AIDS. He holds an honours degree in psychology from the University of Aberdeen and currently works for one of Scotland's leading charities supporting people living with HIV. He lives with his civil partner and their two dogs in Edinburgh in one of the streets at the foot of Arthur's Seat. Caleb's List is his first book.