Class Mom by Laurie Gelman (2017)

Picked this up off a cart at the library purely for the cover and the spine, which basically says "Ass Mom." (lol!)

Jen, formerly band groupie with two children, one of whom may or may not have been fathered by Michael Hutchence, is married with a five-year-old son and has been recruited as Max's class mom. She sends snarky emails to the parents, gets involved in kindergarten parent politics, and deals with the emotions of being an aging 'cool girl.' 

So readable, so delightful. Even though she's a well-off white woman without a job--which is a very tiring genre--I still liked it. Here's an example of the cuteness: She calls her husband's home gym "Ron's Gym and Tan." Anyhoo. Cute.

Update: Apparently, there are two more in this series. Who knew? Now I do!