Ian R Mitchell is the author of six hillwalking books, and writes regularly for the outdoor press. Ian Mitchell won the prestigious Boardman Tasker Prize for mountain writing in 1991 and his acclaimed book Mountain Days and Bothy Nights was the only Scottish non-fiction work in the top 10 poll for World Book Day 2003. He grew up in Aberdeen and lives in Glasgow. George Rodway PhD is an Assistant Professor in the School of Medicine at the University of Utah and Research Fellow at University College London's Centre for Altitude, Space and Extreme Environment Medicine. He is the author of many scientific and historical articles and has been an active mountaineer in the Americas, the Himalaya and Europe for over 30 years. George lives in Utah, USA.