How to read different genres: Magazine, Text Book, Text Message

Reading a magazine differs from reading a class text book and also text message. When I read a magazine I don't always start at the beginning; if I am reading a text book for a class, I would definitely start on page one. I have to be in a quiet place and be very concentrated when I am reading a class assignment. When I am reading a text message, or typing one, my friends always tell me that I can't multitask so I guess I am very focused when I read a text. When I read a magazine, it is more for fun so I flip back and forth and look mostly at the pictures. For a text book, I often have to go back and reread certain sentences so that I understand what I am reading. I can read a text message or a magazine at any time of the day, and most people read text messages all day long. I would never read a text book for fun, so I only read them when I have specific homework assignments. Sometimes I don't understand what I am reading in a text book so I have to go to my notes, or look up a word within the text to better comphrend the text.