Absolutely loved the concept of 5 love languages.
This has helped me immensely as I can broadly categorise a lot of daily/consistent issues into classified love buckets. The fact that sometimes I am left with a lot of questions about my 9 year old and trying to figure out what are we doing wrong..what needs changing etc..this construct greatly helps. So this is definitely bringing a lot of sensible expectations and better dealings.

I have applied the love languages concept to myself first and it brings a very interesting perspective of self. Greatly enjoyed doing that exercise and then having to apply the same to my parents and spouse brings a beautiful understanding of emotional trade that you should commit to and play around with 🙂 absolute joy when mischief can be added too. But that apart works wonderfully to better your relationship with kids and aids you in your training.
Children are complex beings, this strategy helps simplify it a bit for you.

To have the internal dialogue with yourself as a parent in these love languages can help you draw your own image as a parent and will help you better empathize with your child.

A thoroughly recommended read as there is a short but comprehensive list after every chapter that sort of catches you where u may have spoiled it 😉