So this is the 7th Colleen Hoover Book I read and by now I know the concept of all her books without having to read the synopsis. 
 The Colleen Hoover books 101 for newbies: 
 * Terrible parents! 
 * Her books are writen in 1st POV and we get two of them in each book. The girl's and the boy's. 
 * The boy has done something bad but redemable in the past that he never forgave himself for. 
 * Insta Love 
 * For some reason they can't be together until the end of the book, even tho they both love eachother and they're kissing every chance they get. 
 * There always is some asshole involved with the girl that has anger issues or something.... 
 * The girl is self conscious until the boy tells her she is beautiful. 
 * Some plot twist. 
 * Have I mentioned the Worst parents ever? 
 But also her books are very easy to read, very faced paced and so much enjoyable even tho they are predictable most of the time.