We are writing this book to solve a particular problem in this digital world.It is lucid that the power of a smart phone has been underestimated to the extent that some smart phone users complained of being financially broke while holding a money generating machine.By and large, this book will serve as eye opener to "10 Online Businesses You Can Start With Your Smart Phone With Critical Analysis". This book will also be a self teacher to those aspiring to be a digital marketer/entrepreneur.