A young adult fiction novel by Rachael Lippincott (2018).
So this is actually a YA novel, but it's nice to read at any age. It's especially interesting given the current situation, when everyone is supposed to stay at least 5 feet apart. The novel is about two teenagers who live with lung diseases that make it dangerous for them to get close to each other, so they need to learn to keep a distance. Pretty insightful in times of corona virus.

As with most successful YA novels, there is also a cute film adaptation, in this case with Haley Lu Richardson and Cole Sprouse.
