Cramming and cramming and cramming!!!

I really feel not particularly happy when I see people cramming before the exam. This practice has been seriously spread among Cambodian learners nowadays. This morning I had an exam at my university. Before I went to the exam room, I was in the library chatting with one of my friends who was reviewing for his exam in the afternoon. Just half an hour before the exam starts, the library was filled with groups of students. In their hands were the documents they have copied from the book. I did not know exactly what purposes of those documents are, but as I might have understood they were used as cramming materials. All the groups inside the library shared a common characteristic which was cramming. They tried to upload all the materials they had learnt for more than a month into their brain in just a few minutes. "How are they going to remember all of the information?" I questioned myself.