At one point, the heroine spots a suspicious person going into a chemists. So she follows that person in and, to look busy while listening in, browses the magazines.
In American and Canadian drug stores, magazines are ubiquitous. It's one of the basic places to go and buy a magazine.
In the UK? Chemists don't stock magazines. The only time I have seen them there have been in giant Boots, Boots so large they are mini-department stores with an electronics section, books, and stationary.
Have you ever seen magazines for sale in a normal chemists in the UK?