The December Ship: A Story of Lt. Colonel Arden R. Boellner's Capture in the Philippines, Imprisonment, and Death on a World War II Japanese Hellship Book

I am of fan of Spaghetti Westerns. These are westerns made by Italian directors. They are primarily filmed in Spain, and often backed by investors or film studios from the UK, Germany, France, Spain and Italy.
Many of them are very good. Many of them are bad; sometimes really really bad. Some are even Western Comedies (avoid those--Please). Some are also very very violent (Cut-throats Nine).

Another thing to remember: Like many European horror films Spaghetti Westerns can have up to five different titles.... (personal note: somehow the two films that I have most of are God's Gun and Death Rides a Horse)

This book provides details on all the 'Spaghetti' Westerns [okay --it's possible one was missed). Also included is a section listing all the actors, directors and composers. There is a listing of all the Django and Sartana films. Now, I made you curious.
You see there were only two actual films with Django (see 1966's Django and a 1987 sequel). The other films have 'Django' in the title, but rarely was anyone in the film called that. The same applies to the Sartana films. It is confusing...but one gets used to it. This was often done by German Studios to 'trick' their western loving audiences to come to the movies.
Yes, German's love Western Films. Many hundreds of (American and) Spaghetti Westerns have been re-issued by Germany on Blu-ray before even getting a proper DVD release in the USA.

Then their are the counterfeit Italian Westerns. Those are American Westerns that seems to be Italian Westerns, but are in reality not that at all. Such films as Charro! (with Elvis!); Chato's Land; The Professionals; El Condor; High Plains Drifter; Hang 'em High and others. The book provides a list.
Also of note is the fact is that many American actors besides Clint Eastwood appeared in Spaghetti Westerns because: they got paid. Telly Savalas; Charles Bronson, Yul Brynner; Chuck Connors (yup, he did just one); and of course Henry Fonda. Many of these were in some dang good films.

I highly recommend this book. My edition is from McFarland Press.