>>4424250There are probably a ton of theoretical books on how to start
I can tell you how I started, bought a cheap analog camera on ebay (30$) got some black and white film (something easy like an ilford hp5) and a fixed lense (got a 50mm witch is not too wide nor too long)
I checked out youtube videos on how to expose correctly with iso shutter and aperture and bough a lil self developer kit
Then I failed, I shot and failed over and over again (still am)
But at one point I started to understand how light works etc
Then I looked at a bunch of photobooks and zines, it was really helpful to see what was possible and what kinda different styles there were
Once I had a genre or style I liked a lot I tried copying it
I think that what makes a photo "good" is different to a lot of people but there is one common agreement is that it should be technically correct and if not that there is a reason behind it ( you can have a picture in a body of work that doesn't stand out as much as the others but still makes sense or contributes in a relevant way)