KN Fan,
it all depends on what kind of latin music you are referring to. Just to make an example, salsa piano players play a lot of notes in octaves with the right hand and use that technique to play repetitive riffs which kind of add to the rhytm section. On the other hand, bossa nova players use complex chords, like b5, b9, 13, etc and actually have a lot in common with jazz players. Just to start, you could take a midifile of a latin song you would like to play and then analize the tracks with a program like Power Tracks, Cakewalk, Cubase, etc, to see how the chords, scales, riffs are played. Otherwise, you could simply listen carefully to the latin styles in your keyboard and try to replicate what the different players are doing.
Frankly, I don't think that a book would be really useful. Anyway, if you can be more specific about the genre of music you would like to play, that would be helpful.