Look at the URL from Lifson in comment# 21.
That terminal part, &btnG=Search+Books&tbm=bks&tbo=1
is some sort of ccommand to search books by Bill Ayers, IMHO, not any hacking.
The command is a simple “dynamic URL”, although it’s the devil to find any info on these. I did find a mention on some site that “tbo=1” preserves the search options, or something. I infer that this means that the “bill ayers” search line is carried into the google books page, so that when you click on the book it performs the same search. This is what I did from the posted link, and as you can see from the screen shot I posted, it did do the search ( if you take my word that I just clicked the book image. ) As I say, when I repeat this now, it doesn’t find these bogus hits from some other source.
Although the list of books it shows are headed by ones with Bill Ayers as author or co-author, there are books further on which merely mention the name. I assume that “Dreams” was listed high because of the number of hits associated with it, whether this was a hack or some freak error, or whatever.