I've been reading James Nestor's book, Deep.

I am in love with the part where he is diving with humpback whales. The guy he dives with was trying to decode the language and better understand echo location. Have there been more studies, or can anyone recommend more books like this? There was a blind man he met who could paint a picture in his mind about his surroundings by making clicking sounds. I knew cane travel kind of worked like that but this was much more detailed.