In 2007, John Taylor, a senior writer for Esquire and contributing editor for New York magazine, wrote a book called “Smoke Burns.” The Martinsville Fire Department adopted a training program using methods described in the book. On Taylor’s suggestion, firefighters from London are here this week learning from Martinsville firefighters. The men and women involved are veteran firefighters with years of experience. They say the training gives them an extra edge they didn’t have before.