Every movie I watch now is a movie about an entire cast of people who seem to not have cancer, or at least this is, to me, its plot,” Anne Boyer observes in The Undying, her recent Pulitzer Prize-winning inquiry into cancer.

Last summer, my husband had gone hiking with our two dogs when one of them — a year-old rescue who weighs in at over 50 pounds, can scale steep inclines like a mountain goat and has the speed and grace of an Olympic athlete — suddenly collapsed.

Nina Stibbe’s “Reasons to Be Cheerful” is so dense with amusing detail that I thought about holding the book upside down to see if any extra funny bits might spill from the creases between the page.