Dear Professor (教授的姓) My name is_, an incoming student of yours. I have some concerns regarding your course. Im wondering if there are books that you will recommend for me to read to help me better understand your lecture. I hope to be well prepared for your class. I am also wondering about works in your class as well. I want to know how often do we have to write essays, and approximately how long will they be. Thank you for your time and help, I will really appreciate it!Sincerely,你的名字 大概就是这样子的了，这是写给一个教授的电子邮件，问他关于课业的问题。如果你不知道这份电子邮件要给什么人，也可以写成, To whom it may concern.