My wife and I just finished watching the Maigret TV series on Britbox, and we thoroughly enjoyed it. I did some research on the original Jules Maigret novels by Georges Simenon. Penguin began releasing updated translations of the novels in 2013, they are now up to book 55 (full available list from Penguin). The site Book Series in Order has a list of the original publication order. I have reserved the first one at the library – looking forward to it!