I have searched far and wide for a book series on the history of philosophy published in my native country, which is Italy, and I must say that, having compared many, I'm almost confused as to what pick.
For no particular reason, however, or perhaps just out of curiosity, I was wondering what other notable book collections have been published in the English language, covering a time range starting from the typical beginning of western philosophy, i.e. Greek philosophy, and ending up to the most recent developments.
Note that I'm not looking for a one-volume treatment of the history of philosophy, such as A History of Western Philosophy by Bertrand Russell, nor an introductory text suited for beginners (which actually, by its own definition, could arguably never be too large to be divided up into multiple volumes). I would instead be more interested in a complete, compartmentalized overview (overview, not specific, focused texts) of the various eras of philosophy, enriched with references and to be preferably read more as a reference than sequentially.
In this last case, A New History of Western Philosophy (which I think has been divided into four volumes) from Anthony Kenny looked promising, but I ran into a shortage of time and didn't have the ability to compare it or to search for other published works.