Lena You do not need to, even it might be beneficial. I read it as a standalone and that did not take away from the greatness.
Dash of Sunshine YES. please do so because if you don't, this one won't make much sense. :) happy reading, and i hope you come to love the characters. my favorite is sam. ♥
Betsy Ponce Yep, you do need to read them first. Specially the second and third book ;) though, for understanding those you need to read the first... so yes... you do NEED to read them all :)