The directories have been particularly useful because they list all the shops, pubs, schools, businesses and so on - a very handy aid for fuzzy memories!
I have 3 in my collection, 1966, 1970 and the 1974 one in the photo above, which was the final year of their print run.
Having said that, despite the fact that many of us depend on such official publications for research and fact finding, I've discovered you can't always totally rely 100% on what they print.
Take for example, the street map in the photo dating back to the beginning of the 60's. When I was having a wee look around my old stomping ground - Craigie - I couldn't help notice what appears to be a spelling mistake. The road connecting Aboyne Avenue to Balerno Street, I've always known as BANCHORY Road - but they have it down as ARNCHORY Road, as you can see by my red arrow. They also have it listed in the map index as Arnchory as well.
Forward wind 2 decades to their 1983 map and by heck they still haven't sorted it out properly - now they've printed it out as BARNCHORY Road..!!
Looks like the Geographia Cartography office would have benefited by employing a Dundee taxi driver to help them out!