Duncan Wells is an RYA instructor and sailing school principal. He has written for many leading boating magazines in the UK and US. He is also the author of Stress-Free Sailing, Stress-Free Navigation, Stress-Free Motorboating, Stress-Free Mooring and 101 Tips for Stress-Free Sailing (Adlard Coles Nautical), which have helped countless sailors and motorboaters learn helpful boat handling and berthing techniques. He lives in Buckinghamshire.