You can read more about this MagBook and buy the guide from [http://magbooks.com/magazine/books-and-directories/health-fitness-books/the-ultimate-guide-to-marathon-running-2nd-edition?affiliate=R-BB-2011 here] or for the USA [http://magbooks.com/magazine/books-and-directories/health-fitness-books/the-ultimate-guide-to-marathon-running-2nd-edition?affiliate=R-BB-2011 click here].