"Foul Play at the PTA" is a cozy mystery. It's the second book in the series, but you don't need to read the first to understand this one. Some events from the first novel are spoiled, but not the mystery.
The characters were complex and varied, and Beth dealt with realistic struggles (financial worries, raising her kids, dealing with an ex-husband, etc.). However, the main character trait for Beth, Marina, and a few other characters was exaggerated to the edge of what was believable, probably to create humor. On the other hand, I normally wouldn't like or accept a mystery novel main character who was very non-confrontational and a chronic worrier, but I loved how Beth would stand up for what was right even when people tried to bully her out of it and she felt scared.
A mild level of suspense was created by the threat to Beth's business (and thus her much-needed income) and by a certain level of physical danger to the characters. I did not guess the whodunit. In a way, it wasn't guessable until near the very end, but I didn't guess right even once the characters were certain. Perhaps that's because they kept being certain about each latest suspect. Also, while I know people will kill for the stupidest reasons, I was never convinced that the motive would realistically result in a killing spree when whodunit could have skipped to the end intent without killing and had a much higher likelihood of succeeding.
This book almost hit a pet peeve when the characters delayed in calling the police when they knew whodunit and were in pursuit. It did hit a minor pet peeve in that two characters were seriously, er, ill, which provided a clue, but one of them suddenly showed no signs of illness (when it would have been inconvenient) and we never found out how the other one ultimately fared.
There was a brief Christian prayer at the Thanksgiving dinner. There was no sex. There was a minor amount of fake bad language. Overall, the mystery was engaging and interesting even if it didn't strike me as highly realistic.
I received this book as a review copy from the publisher.