As a person whose had his hand in over 2,000 blurb rewrites (as well as writing many from scratch)…
I can tell you what the vast majority of book descriptions for fiction or nonfiction are missing.
It comes down to momentum.
So many of these blurbs have long, pokey, run-on sentences because the author is trying to put in too much information.
They don’t continue to preserve the energy of the previous sentence.
There are lot of hard stops and there are a ton of clauses.
The blurb just sags in the middle or it never really picks up steam to begin with.
You need momentum in a description because you’re trying to keep that potential reader going from the beginning of the blurb all the way to the end of it.
And if you do not have the energy baked in, whether it be through using transitional phrases at the beginning of the sentence…
Whether it’s just trying to use words related to time, like before and after.
You can also use gerunds at the beginning, like “dancing his way to the top of the charts…”
Something that gives the sentence or paragraph energy right at the start.
At the beginning of every sentence in the blurb.
And leaving a cliffhanger at the end of every paragraph so people wanna keep the next paragraph.
If you don’t have that momentum, then your blurb is gonna stop cold.
It’s gonna stop the readers cold and they’re not going to buy your book.
So, make sure, when you write your next book description, that you have momentum.