Map Men Jay Foreman and Mark Cooper-Jones visit the Ordnance Survey in a (sponsored) set of two (vertically aligned short) videos: part one, part two. Complete with map-folding mishaps, gratuitous hi-viz vest wearing, and a Google Maps dig.

Meanwhile, they’ve also gone and written a book: This Way Up: When Maps Go Wrong (and Why It Matters) will be out from HarperCollins imprints in the fall of 2025: the U.K. edition will come out from Mudlark in October (£17) and the U.S. edition from Hanover Square Press in November ($30). Amazon (Canada, UK), Bookshop.