What is the best gift you have ever received?

As far as I am concerned, the best gift I received is a marking book in my 19th birthday. My economical teacher gave it to me. I like it very much. As well we know that marking is a kind of major which cuts across the boundaries of many different disciplines. so it broadens my knowledge scope, such as the aspects of advertising and trade. Also, a plenty of cases are included in this book.In addition, many definitions can explained very acceptable. So, it definitely helps me to get a deeply understanding of my major.