It's a must read for young teenage girls; Giving them advice on life, without being boring and feeling like a lecture. It's an excellent balance between excitement and the giddy-nervousness that girls get when liking a boy(s), and frustration when author, and characters, leave you wanting more.
Not only does it deal with love triangles but bullying and first love. Well... More like 5th love.
You'll fall head over heels just like Lara Jean did with Kenny, John, Peter, Josh, and Lucas.
There is a 2nd book in the series but don't let that stop you from reading the first!