The study of human perception is not easy, but it can be a lot of fun. How do we know for example, that we all represent reality in the same way? How do I know that my perception of the colour blue is the same as yours? We can't really know for certain. Human perception has its limitations, and we can be highly suggestible. Human perception is absolutely fascinating, and studying the processes by which we represent reality through our senses is completely engaging. Some of my digital literacy students discovered how thoroughly absorbing it can be to learn about perception this week. I took them on a brief tour of cognitive processes, including the human senses, memory and recall, and the representation of reality through perception.