World Book Day falls on April 23d every year. The UNESCO set it up to help people, especially teenagers, to e reading. It is also the day to remember great writers. "R makes a full man." Books, magazines, newspapers and other reading materials help us know more about the outside world. Reading also helps us follow the latest development(发展) of science and technology. When we read, we may find we don't umany things well. Then we use our brain to think about them or do more reading to find out the answers. The more we read, the more we k. So it is necessary for us to s time reading every day.