Recommended to buy.

If you ever plan on LARPing using White Wolf's Mind's Eye Theater rules for Vampire I highly recomend every one of these books. They are informative, useful, and worth every dime.

Laws of the Night WW5013 A guide to playing your Vampire character. It contains all the rules and information you will need to participate in a Vampire Live Action Role Playing game. Most improtatanty it outlines disciplines, generation, clans, sects, and disciplines.  

Laws of the Night: Anarch Guide WW5040 The essential Anarch Guide. Though Anarchs are not highly regarded they are the wave of the future. This explains high generation characters and their place in the Jyhad.

Laws of the Night:
Camarilla WW5017 Guide For elders this is an essential companion piece to the Laws of the Night. It has the high levels of disciplines, and explanations of the inner workings of the Camarilla.

Laws of the Night: Sabbat Guide WW5018 For all you Sabbat members. It expands on the Sabbat disciplines, the Paths of |Enlightenment, the sect positions, and Sabbat rites.

Laws of the Night: Storyteller’s Guide WW5021 Well it has some rare clans, information on the Week of Nightmares, and a few other tidbits.