This was the first Gibson book I ever read. After browsing through a local Sci-Fi bookstore, and having heard good things about Gibson from a friend, I spotted this in the used book section, and picked it up. Immediately thereafter, I was enthralled.
Gibson has taken the probable, the possible, and the fantastic, and woven them into a single, believable entity. Mona Lisa Overdrive is a worthy successor to Neuromancer, in every aspect. Such favorites as Sally (AKA Molly), and the Finn tie this into Neuromancer quite well, as do the references to Case and the union of the Rio and Berne AIs.
Gibson's style is such that it takes several readings to truly understand a book; even then, you're left wondering "what did he mean by that?" Mona Lisa Overdrive is no exception. Never having read Neuromancer previous to Overdrive, I was mystified by the events described in the book; once I read Neuromancer, many things were revealed.
The technology, the political intrigue, and the societies of Gibson's future are projections of current trends, plus the mystical dimension of "cyberspace;" the medium through which the majority of the world communicates. There is nothing new under the sun, and Gibson proves this with Mona Lisa.