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The Blue Gumball is a book about how to sell anything to anybody and succeed. I found this book to be very interesting and unique. I especially liked how the author was very detailed in his explanations of such complex sales methods. If you are looking for a book that will not only challenge the way you think, but that will also coach you on how to become a better salesperson, then look no further than The Blue Gumball. This book will teach you everything you need to know in order to succeed in sales. Improve Sales Today