Ivar Dedekam, of Dedekam Design, specialises in uniquely illustrated nautical manuals which are easy to understand and remember. Ivar has been sailing for over 30 years and has logged more than 50,000 nautical miles, including three Atlantic crossings. His book Illustrated Sail & Rig Tuning is an international success and has been published in 19 languages.

"This book is different… I recommend this little book to everyone - whether expert or novice you'll find something." (Sailing Today) "Filled to the brim with every scrap of information that both novice and experienced sailor will welcome as a 'must have' addition to their bookshelves." (Multihull World) "Every keelboat sailor should have a copy of this book." (Danish Sailing Association) "Simply outstanding." (Sailrite) "I will urge anyone who takes their sailing seriously to buy a copy." (Cruising Magazine) "The best we've seen." (Good Old Boat Magazine) "This is a great book to have to get the most out of your sailboat, no matter what the size." (TrailerSailor) "Very thorough." (Yachting Monthly)

• General; Genoa trim; Mainsail trim; Spinnaker & gennaker; Rig tuning