Don't be fooled, this book is big, and heavy too but it's definitely a worthwhile purchase.
I brought it as it is a mandatory book for my degree course at University, and I imagine that's what you're buying too, but if not, and you just really like literature, then it's definitely worth considering.
The pages are very thin and can be torn out easily, which is no bad thing, especially if you don't want to lug the whole book around campus with you all day.
The text is very readable, set in about 7/8pt type, so not too small, although due to the amount of literature crammed into the book, it can be difficult finding the novel/play/poem you're looking for.
Overall, worth a look at, expensive but this is the cheapest place I've found it on.