If you've got something you're trying to study, Leo, this isnââéČ™t the day to do it. Your concentration is likely to be off, and what you're reading will probably look like Greek to you. Unless itââéČ™s really necessary, it would be best to put the books aside until tomorrow, since you probably won't absorb much today. Trying to read could give rise to the illusion that you've learned something. Be on the safe side and put it off!