Following Joe Decker's 4-week fitness program is like having your own personal trainer educating and motivating you and directing your daily exercise and eating. Decker went from an overweight, partying, greasy-food-overeating bartender to the Guinness Book of World Records' "world's fittest man" by completing an array of 13 grueling athletic endeavors in 24 hours, including 130 miles of combined cycling, rowing, hiking, and running; 3,000 ab crunches, 1,100 jumping jacks, and a total of 278,540 pounds among 10 different weight-lifting machines. Now a personal trainer, Decker presents his four-week "Shock Your Body" fitness program. His daily exercise program combines a variety of cardio options with illustrated weight-training and stretching exercises. His eating plan isn't a diet, but rather a process for understanding nutrition and changing how you eat, with complete, daily menus (it's a bit annoying, however, that he prefaces all 12 recipe titles with "World's Fittest Man"--e.g., "World's Fittest Man Catfish Creole," "World's Fittest Man Super Stir-fry with Chicken," and so on). Tips, facts and myths, write-in charts, and Decker's pep talks help to personalize the program. Recommended for people who want to make a big change and need information and structure to put it into action.