Whats the best poker book to improve online play?

hi guys,
i'm looking on improving my poker skills online,however there's so many books out there don't know which to buy,
any recommendations and reviews would be great
thank you
alex

Hello and welcome. You might need to be a little more specific and narrow it down. Limit? NoLimit Holdem? Cash? Tournament?(SNG-single table or MTT-multi table tournament). Others may disagree but I don't think that playing online versus live is significantly different as far as basic poker fundamentals go.

For cash game i recommend Harrington on Cash Game and for tournaments Lee Nelsons books, and for sng´s the Moshman book.

i'm looking for some on no limit hold-em and some pot-limit Omaha,and ones on cash and tournaments

To add to what Daniel72 posted:
NL Holdem - Cash (1) Cash Games in 3 volumes - Dan Harrington and Billie Robertie
NL Holdem - MTT- (1) Harrington on Holdem Expert Stategy for NL Tourn in 3 volumes
(2) Kill Phil and Kill Everyone - Lee Nelson et. al.
SNG (1) Sit "n Go Strategy by Collin Moshman.
Omaha - Pot Limit and Advanced Pot Limit Omaha By Jeff Hwang in 3 volumes
Obviously there are others but these 12 books should provide a solid foundation.

For MTT's I still like the Harrington on Holdem books.
SnG's I like Sit n Go Strategy by Collin Moshman

Honestly, youre much better off just signing up for a training site for even a month and DL a bunch of their vids to a hardrive for extended use.

Books are pretty decent for beating home game and 1/2 type players live, but people are-for the most part- well past that point online even as low as micro stakes online now.

Sad but true, books just arent of much use imho.