E-book apps that work with VoiceOver?

Does anyone know if there are any other e-book apps that work with VoiceOver?  iBooks is great but other e-book apps would also give more content.  I've been told that Stanza works with VoiceOver but is this correct?  The Read2Go app also looks good but I don't want to spend £14 if it doesn't provide me with a reasonable level of content as a UK blind Apple device user, even if I spend the 125 dollars to become a member of Book Share.Many thanks,Steve.

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