Shit. Filled with anecdotes that have no follow up with the subject they are talking about.
Constant downgrading of Indigenous cultures feats on the ocean and the possibility they could have done their seafaring WITHOUT influence from the west! Key example Pacific Islanders, PNG, Timor, and Indigenous Australians.
Also, in the first few chapters where they talk about who invented maps and the different types of maps, again with the downgrading of Indigenous cultures. The oldest continuous culture on earth, Indigenous Australians, have been painting aerial and hydrographic maps and there is NO mention of them but a tiny reference to a South American Indigenous group but AGAIN referenced to the possibility of them being influenced by the west 😒