Classmates or colleagues communicate about a project in person or by e-mail, which is better? With the development of society, It is very common for classmates or colleagues to cooperate to finish a project. Recently, some people propose that communicating about a project in person would reach a better work performance for the project, while others hold the opinion that communicating by e-mail could be a better way. From my perspective, I would rather choose to communicate about a project in person. My arguments are listed as follows. To begin with, it is more efficient to communicate in person than by e-mail. This is because all the members in the communication group could get the feedback immediately, but if we need to wait for a long time waiting for others to reply to our e-mail, it could be one hour, two hours, or even several days. Besides, chances are that we may have a different opinion about how to reach the same goal, when could know the emotions of the group members by looking at their faces and listening to their voices, in this way, we could communicate with them in time and cheer them up so as to get a better work atmosphere and better results. Otherwise, it is difficult for us to achieve it. Additionally, communicating a project in person could be safer than e-mail in many cases. When we are communicating with our classmates or colleagues about a project, typically we need to share some important files, such as experiment results, product designs, or price strategies, with them. In this case, if we communicate by e-mail, it is highly possible that some hackers hack into our e-mail accounts and steal these important files, and cause information leakage. On the contrary, communicating in person we could effectively protect these information in various ways like choosing a safe meeting place, turning off the mobile phone, or exchanging the ideas by paper notes. Therefore, communicating in person could protect the information from being leaking. Admittedly, we could have enough time to think about how to polish our language by e-mail. However, when we working in a group, we could discuss all kinds of solutions directly, thus evaluate which solution could lead to a better result. During this process, we may need to modify our solutions many times. When it comes to the adjustment of the solutions, it is more convenient to communicate in person than by e-mail. To sum up, according to the factors mentioned above, we may draw a conclusion that communicating about a project in person could produce better work for the project.