Most times it depends on my mood and if I can be bothered to pick up another book to read. sometimes I feel like I have read for ages so I feel I need a few hours or a few days break, but most times I either get onto the next book I wanted to read straight away or wait for few hours to let what I just read sink in if its that good. Plus I don't like have more than one book on the go, I use to when I was like 7 till about 9 I use to get books from the library all 8 at one time I get a mixture of 200 pages long or 50 pages long and I would normally read about 2 or three in a day and take them back to get more books out, but now I feel to involve in the book, its like a movie but better, I won't watch half movie then move onto another movie and watch the for half an hour and then go back to the first movie, I like to see a movie straight though like a book so I won't get mixed up with the characters and stories.