I struggle through Italian texts on the basis of my varying degrees of ability in French, Portuguese and Spanish.
The main part of the Caldiron book is from p.34 - p.96 which is essentially Corbucci in his own words in what amounts to a short autobiography. Before that there is a preface by Paolo Villagio, an introduction by Caldiron and a timeline of key events in Corbucci's life. Following the autobiography are some accounts by his friends/colleagues and then a description of each of his films with snippets from reviews at the time.
The "Ciak, Motore, Azione" book is arranged as a sort of eclectic mix of key people and events that figured prominently in Corbucci's life and to which Nori was witness. So it includes a whole range of topics covering witnessing a UFO while shooting the Mercenary through to the artist Renato Guttuso mistaking Corbucci for Leone and then making amends by sketching a nude woman for them (the sketch is actually reproduced in the book).
I need to spend more time with the books as my poor knowledge of Italian does not really allow me to skim-read them. I would love a copy of the Caldiron book but it seems pretty hard to obtain. I've just noticed that "Ciak, Motore, Azione" has been re-published in a new edition last year so I might need to save my pennies to purchase my own copy: