Jack Bamford's book "Croissants at Croydon"
is about his experience from 1920-39 as Air France manager in London. Although admin rather than detailed ops, he inevitably makes reference to a range of navigation aspects during his time, starting with aerodrome staff firing Very Pistols into the air to draw attention to aircraft. Then in WW2 he went into the RAF and managed a fascinating trip to the USA, describing astral nav across the Atlantic, and the "aerial lighthouses" that were erected on mountaintops there to facilitate night air mail services across the country.