As a resource for New Mexico history this had some interesting stories that made me want to research further, but I felt that it was disorganized and included random information not relevant to the scope of the book. The book is only 121 pages. 21 of those pages (yes, I counted) was on the history of Spain from 1700 BC through to the Spanish Queen Isabella who originally sent Columbus. 21 pages!! 17% of the book has nothing at all to do with the Hidden History of New Mexico! It's not hidden. It's not about New Mexico. A page, maybe two, certainly, bridging the gap between the political and religious culture that the original colonists from Spain grew up in and how it differed from the new world they were moving to would have been relevant, and enough. I'd rather have more information on the specific Native American tribes in the area, their history and beliefs and when and how the Spanish colonists arrived (the ones who traveled with Onate, how/when did they end up in Mexico in the first place? What were the names of the boats? What years?), more about the daily life of the colonists, etc., rather than the excess information about the history of Spain. In the Native American section, the author references Crazy Horse and Chief Joseph, who, while Native American, have nothing to do with New Mexico or New Mexican tribes, along with the stories of the rising coffin of Fray Francisco Juan de Padilla and the Inquisition of Dona Teresa de Aguilara y Roche. Both stories were very interesting, I enjoyed them, but I don't understand why they were included in the "Native American" chapter . The Billy the Kid story felt tacked on and wasn't fully fleshed out . . and there was no information about New Mexico from the Treaty of Guadalupe to the Battan Death March. It just jumped from one century to the next. There's nothing about how trains impacted New Mexico in the late 1800's, nothing on how southern New Mexico was developed, etc. Overall it was a good stepping stone into further research but I wouldn't recommend it as a primary source.