In the Pretty Little Liars tv show, does it give anything from after the first book away?

[AmandaSue]

I've only read the first book, but I want to start watching the tv show. Does the tv show reveal anything that comes in the second book or after? Don't tell me what it is please!

 

[BabyMama]

Yes it does.

 

[LaDy In ReD]

of course it does, otherwise how would they have enough drama for a whole season?