When I was a young boy living in the 80s and early 90s, there was no internet as we know it. The internet was still an experimental network between universities and military installations. There was certainly no internet in people's homes and no one knew what the internet was.
The closest thing we had to the internet was yellow pages. The Yellow Pages directory was a large printed bendy book that was posted to every home once a year. It contained the telephone number and address of every business in the whole area. If I wanted to find the number of the local pizza hut, I would open the yellow pages and then call the number listed using a landline phone. The whole book was arranged in alphabetical order by category.
The yellow pages book had a nice but funny smell and was yellow in colour. It was free I think, I think they made their money from paid adverts. The pages inside had a slight yellow tint. The logo of the yellow pages was two fingers but it was small and most of the book was just a featureless yellow book with the words yellow pages written on it. Every English person of my age group knew what was straight away. I was surprised it stayed around so long after the internet was wide spread. The yellow pages played a role in getting my first job when I was a young man.