Early in the 20th century, Wallace D. Wattles published "The Science of Getting Rich." Almost a century and a half and two decades later, the book has seen a renaissance as individuals rediscover its lessons. Wallace made sweeping claims in his book, claiming that it is the ONLY book one needs to get wealthy. He even goes so far as to advise against reading other books in favour of merely concentrating your attention on the "energetic labour" that this book demands.