you can able to find various books but if you want to get the book which will motivate personal development and self help book then you need to know about free think and grow rich book. Now you can get this book at reasonable cost which was written by Napoleon Hill. It was published in the year 1937 during the great depression. This getting this book can be done through online and it is very easy because you can get it just by sitting at home. To know more details about the book in brief, you can refer the official website.