How do I judge the quality of the needlessly long book? I would argue that 15 second videos are better for this, because I can easily watch a bunch of them from

How do I judge the quality of the needlessly long book? I would argue that 15 second videos are better for this, because I can easily watch a bunch of them from different sources to corroborate what I see. I can also research the quality of the video's creator, just as I can research the book's author.