The Magician (Ansiktet 1958)
When I say I was not impressed by them I mean that I did not learn anything new about Bergman, so if you have not spent as much time with his film and his archives as I have you might find them more interesting, but I do think there are too many books about him. Despite there being many important topics that have not really been explored so far the books so often are about the same old things, or they use Bergman as an excuse to talk about other, unrelated things. Regardless of how important and good he was, the majority of filmmakers are vastly under-researched and among them there are many that are as interesting, or might be as interesting, as Bergman. Consider F.W. Murnau. How can it be that there has not been a single book in English about his life and work since Lotte Eisner's Murnau, originally from 1964, and then revised a bit in 1973? It is now out of print, and she did not say all there is to say about Murnau. The only Murnau book now in print is, I believe, Friedrich Wilhelm Murnau. Ein Melancholiker des Films, published by Deutsche Kinemathek in 2003. And where are the books on, say, George Sherman and Márta Mészáros? (Catherine Portuges's book about Mészáros from 1993 seems to be out of print too.)
Winter Light (Nattvardsgästerna 1963)
One reason why so many write about Bergman, as well as Hitchcock, is that they have not just made the films but also willingly talked about them and about themselves, and have had a strong public persona, carefully crafted. They are famous among people at large, not just among those interested in film, and fame obviously appeals to film scholars as much as to the next guy. It has become something of an industry, a self-perpetuating Bergman-Hitchcock-complex (and a handful of other directors), so there will be more books about them, and hopefully some might add something new.
But that apparent openness of Bergman to talk about himself and his films is also a problem because he is such a performance artist. Everything he does is an act, which is why you should never take anything he says as being true in any conventional way. He invents things, embellishes things or twists them around and adjusts them to his daily mood. Many of the stories he tells about his own life and his childhood are invented and often have little to do with what actually happened, whether it was something good or bad. Yet many critics and scholars use Bergman's own sayings and writings in an uncritical way as if he was telling it like it is (or was). He is not, and they should restrain themselves from relying on it. That is a topic I will have to explore further another day.
But here are some topics I have already explored because I too have written about Bergman of course. I do like his work after all, whether books, TV-productions, films or stage adaptations (his version of Yukio Mishima's play Madame de Sade was amazing), and because I have had so much to do with this work, professionally.
https://fredrikonfilm.blogspot.com/2018/04/bergmans-films-of-1940s.html
https://fredrikonfilm.blogspot.com/2013/05/bergmans-favourite-films.html
https://fredrikonfilm.blogspot.com/2014/04/bergman-and-taxes.html