online book has saved me from a lot of trouble of carrying my heavy books in my backpack. Carrying a backpack as you walk around the campus can be a daunting activity. Especially when your backpack is filled with heavy print books from different classes. But thanks to online book, I never have to worry about that again. Ever since online book came about, I immediately jumped into it and left the use of traditional print books without hesitation. Print books in college classes are not to be taken lightly. They come in big and heavy sizes, filled with seeminly redundant pages. So, nothing makes me happier right now than having online book.