Yes – absolutely! We even added a dedicated chapter just for coilovers.
If you are wanting to design a suspension for a lowered daily driver, every suspension theory/concept addressed in the book will crossover directly. However, if you aren’t lowering your vehicle, the suspension geometry targets will change; how much they change is going to be dependent on how not-lowered your vehicle is. Regardless of what you are building, there are plenty of suspension theory subjects discussed in the book which are universally true.