Several views of the city are presented in various levels of detail. Guadalajara's streets are being changed faster than this map, but I like its readability and simplified views of major arterials. City map guides Guias de Ciudades by Guia Roji. Unless you're delivering pizza, however, I can't imagine why you'd need one of these guides. Once you get to Mexico , look for road atlases and maps in larger bookstores, sidewalk newsstands and magazine kiosks.
Prices are good but the selection tends to be unpredictable.
Don't expect to find maps of the entire country in local tourist offices or travel agencies. You will also find regional and city maps from smaller publishers.