I gave myself a navigational scare last week in bad visibility in the Fisherfield Forest. This was mainly down to ordinary stupidity followed by unnecessary panic, but it wouldn’t hurt to brush up my navigational skills. I’d like to buy a book on U.K. mountain navigation. I know the basics but I’d be especially interested in poor visibility techniques. Any recommendations please? I’m easily put off by bad diagrams, poor proofreading, funny cartoons and unnecessary filler.