If you've read a book of mine and liked it, can I beg for a review on any and all platforms that you have access to? Naturally, you don't have to if you don't want to, so this is really just a request, not a demand.
Honestly, word of mouth is really the only way we little known writers could possibly become known. And sell. And make money doing this thing called writing so we can continue to do the thing called writing. The best way for that to start is book reviews.
If you liked it, tell your friends and family. Ask for it from your local library. If you're part of a book club, maybe suggest it for everyone to read and discuss.
This goes for any author you like, by the way, not just my stuff (if you liked it).
Again, you don't need to.
Right, I have more writing to do.