求英文感谢信急!王刚寄给我一本书,该书对我正在进行的研究工作很有帮助,因此写一封感谢信比王刚,并希望有机会与他一起探讨书中的一些要素.请根据内容帮忙写一编感谢信

Mr.Wang Gang,Hope you have a good day.I am really grateful to you for sending me this book.It has been a great help for my present researches.I have to say that you are a very nice person.By the way,I...