I am Chitrabir Debnath, a professionally qualified person in management, and started my career as faculty, then designer, then a mid-level management professional, then I have change my career. I am started work in gold industry as valuer, auditor and trainer. Training and authoring was my passion from childhood. Some of my poetry books still found in lulu.com and pothi.com. Though these books never buy by any people, as I am an unknown writer. But still I am writing. It's a different category of book. This book is really hard to sell, because without gold professionals never buy this kind of books as a reference. And most of the gold professionals in our state or even country are least-educated or uneducated. They never require books to learn. They have their own guru's, who are also like them. And other mid-educated shop owners are very egoistic. They never take any reference books, as they feels that they are the God of their trade, nobody can teach them. But I have written this book for those person who are new age people, educated, mid-educated or uneducated each of everyone, who feels that learning is a thing which can make a man better, sharper, and brighter.