I remember when I was in High School and used the school's Internet access (between 1993-1997), and search engines still were not big yet. AltaVista came around toward the end. Yahoo was "meh." I purchased a print directory of the Internet in Price Club. The directory listed Gopher, Veronica, Archie and Web sites that one could visit - mostly educational at the time.

Both in size and content it was a "yellow pages of the Internet." I wish I had the foresight to save that book.

It seems HN automatically followed the redirect, the submitted URL was https://www.google.com/pdf/GoogleSearchGuide-front.pdf

There is also a second page, "Advanced Search Options", in a different PDF: https://www.google.com/pdf/GoogleSearchGuide-back.pdf