JB Legacy by Cork and Scivally is a must, Rubin's JB Movie Encyclopedia is a classic along with Benson's Bedside companion. There's dozens and dozens of critical books most of which are utter trash. I remember Man with the Golden Touch being good.
Battle for Bond, Close Look at A View To a Kill are two others that are worthwhile.
The biggest musts are Helfenstein's enormous making ofs on OHMSS and TLD but I'm ashamed to admit I haven't read them yet due to the high cost and limited print runs.
Not sure which of these may be available on audio.