(4.1.2) Kind and speed of reading
There are readings of various speed in the world. The speed also changes depending on what you read. For example, the speed when you are comfortably watching SNS and the speed when you are reading a difficult technical book is different. Various factors influence on the speed of reading, for example, the difficulty of the contents, the amount of knowledge on the subject, the purpose of reading, compatibility with the author, screen or paper, and so on.