Yes - I WILL get that book, 40 examples. My library has it.
Sometimes Wikipedia has an entry on point:
"Visualization is a central topic in Ansel Adams' writings about photography, where he defines it as "the ability to anticipate a finished image before making the exposure". The term previsualization has been attributed to Minor White who divided visualization into previsualization, referring to visualization while studying the subject; and postvisualization, referring to remembering the visualized image at printing time. However, White himself said that he learned the idea, which he called a "psychological concept" from Ansel Adams and Edward Weston. Though the term previsualization was and continues to be used by many noteworthy photographers, and had become part of the vernacular, it is often regarded as redundant."
It makes me sad to see so many potentially good "photographers" just copying everyone else because it must be cool, and shooting until they get something OK.
I think that's why I started getting into the older ways, because I wanted to MAKE photos worth looking at, instead of being a "see and spray" type.
Despite all the stereotypes, there is plenty of evidence that AA did not rigidly follow his own "previsualization" theory. Like most of us, he simply wanted a reasonably versatile negative which
he could later fool around with in various ways till he got what he wanted. I once shared a big two-man
with AA, namely, the biggest collection of "mural"-sized prints of his (actually, 40x60's) assembled in a
public showing up to that point, and believe me, he printed the negs in an entirely different manner than he would have done in a 16X20 print - a lot more poetic, and a lot less contrasty theatrical. In his
own words, there is more than one way to render a musical score. Maybe Minor White made a religion
out of this stuff - he was a great photographer, but otherwise a total kook. I mean, really, the Zone
System is just a toolbox - you pick and choose what you actually need.
Try and snatch this zone from my hand Grasshopper.