i would like to read best profit giving books. like in that books written by how to earn profit. so my favorite book is "INVEST IN THE BEST" this book represents how to earn profit from our work. now a days earning is most important task in our life, so we have to running for that every day and night. earning is based on our ability and strength. few people doing smart working and few people doing hard work.   but they all aim is only one  thing that is earning. now i have to reading on line books also about block chain technology and bit coin trading books. generally books are our friends and our guides.