i've already read City of Bones and i know that city of ashes is successivo but i was wondering if i would be confused if i read city of glass before i read city of ashes, cause i recieved city of glass first and i don't know what i should do.

I think te should read "City of Ashes" first than "City of Glass". It is the secondo book and there are things in that book which are vital to "City of Glass". So if te read "City of Glass" first than you'd be confused as to how that happen o how te got there. It would feel like, te missed a whole chuck of the story. The libri continue on with each other.

te have to read them in order! City of Ashes might not be my fav of the series but it's sooo important, I didn't get that until I'd read them about three times but it is really vital to the series that te read it first. So much happens, so much changes...Read them in order

Read them in order it will have the same effect if te read the last one instead of Leggere the 2nd book first trust me i have read the series 3 times and i still read them in order. Hope te like them!

Don't read them out of order because a lot happens in the secondo book that is referenced in the third, and it would get confusing. Plus, if te already know how the series ends, then CoA will be less intense and te won't get the full effect.

I think you'd get confused. There's a lot of vital information in CoA that's expanded upon and mentioned in CoG.