Cover Trend: Post-Its

Here's a trend I've noticed... covers with post-it notes on them. I could swear I remember more books with post-its on the cover than just these. Are there more titles that I've left out?

The Queen of Bright and Shiny Things - Ann Aguirre

The Last Time We Say Goodbye - Cynthia Hand

The Boy Problem: Notes and Observations of Tabitha Ready - Kami Kinard

All the Bright Places - Jennifer Niven

Sarah Simpson's Rules for Living - Rebecca Rupp

Milo: Sticky Notes and Brain Freeze - Alan Silberberg