The first thing that comes to mind with digest is Reader’s Digest, which I think is still around. What form not sure, but it used to be a small volume, maybe 5×7, that was a small magazine full of easy-reading human interest stories. It also had features that included ‘laughter the best medicine’ and ‘increasing your word power’ or something to that effect. It was a standard in every American home I think. Both parents and grandparents got their monthly issue. It was something the whole family could read. They also offered Reader’s Digest condensed books, where I’m not sure if they edited the books or just crammed several books into one thick volume. Like the stories in the monthly, the books in the condensed volume were easy readers. They also sold special music collections iirc. Nowadays all of the thoughtbytes contained in Reader’s Digest can be easily found on the internet. It’s a wonder that hard print magazines can even survive in this day of digital information. One thing you can’t do with a computer is take it with you when you sit on the toilet, so maybe magazines will still be able to fit a particular niche in society.