@ossobuco,
The first Bernie Gunther book I read was
The One From The Other, which was given away free with Waterstones' magazine, which in itself was free to Watersones card members.
To be honest I didn't take to it straight away, but once I was about a quarter of the way through I got hooked. The first 3 collected in
Berlin Noir were all he intended to do, and he has written lots of other books including a series of kid's books about a genie. Bernie wouldn't go away though he had a huge fan base. The first five are sequential starting with the first days of the Nazis in power and then ending in Buenos Aires under the Perons.
However by then he's getting a bit long in the tooth, and having mapped out Bernie's life Kerr was in a quandary, and had to find the gaps in the other books and fill in the missing pieces. Some of his books have two separate time streams,
If The Dead Rise Not, his sixth book is typical. The first half is set in Berlin in 1934 after Bernie has left the police and is working as the house detective at the Adlon hotel. The second half is set in Havana in 1954.