Featuring additional content in the form of photographs and record-breaking facts, The Bonus Chapter also provides a behind-the-scenes look at Guinness World Records. The Bonus Chapter is available exclusively as a richly designed eBook and includes our Top 10 Claimants, a 'Day in the Life of an Adjudicator' as well as a special section on the Olympics and a quiz to test your superlative knowledge. A perfect accompaniment to Guinness World Records 2013, The Bonus Chapter is for all those fans who want to learn even more about the ultimate authority on record-breaking.