This review is actually of 2 separate books, 100 Ways to Love Your Husband by Lisa Jacobson, and 100 Ways to Love Your Wife by Matthew L. Jacobson.
I'm sure you have guessed that these books were written by a married couple. Each book is very plainly written, the majority is very short chapters consisting of a way to love your spouse. Occasionally there is a deeper explanation offered. For example, one suggestion to wives is "start a fire in the kitchen". This can be a bit hard to grasp from just this sentence, but the example Lisa Jacobson includes makes this suggestion clear. I found all the suggestions to be easy to understand and very truthful. Additionally, I appreciated that the authors were willing to give examples from their own marriages of ways they didn't perfectly love each other. It is a great reminder that all of these suggestions are a lifetime in perfecting.