About 1982 or so I read my first John Hedgecoe Photo book. He was the first full professor of photography at London's Royal College. He wrote something like 33 or 34 books during his lifetime. He wrote some of the most well illustrated books possible, with many small short chapters, each one devoted to Various segments of photographic endeavor.
Even though the books are old now, the basics of photography have not changed in decades. His last book that I know of was written in 1994, it is still available on the used book market for less than $10 Atypical book of his has something like 800 to 1200 illustrations--both small photos, and also well drawn illustrations. You can leaf through one of his books,select a topic, and learn very quickly how the best way is to go about getting the illustrated type of photos. It really doesn't matter whether you're shooting film or digital, what he's teaching was about was how to approach subject matter,and how to find an approach to lighting. Personally I do not think there has ever been as good a teacher of photography in book form, although Michael Freeman has written some extremely good books in the last couple of decades. I personally learned a tremendous amount from this type of book, and after one year you'll learn a tremendous amount by studying just one good book. Today there's a great temptation to try to learn everything from YouTube, and YouTube is an excellent source, but it is not a good primary source,but rather a secondary or tertiary source.