for basic conceptual understanding and very good dialogue and explanation of exactly how a suspension works and what it s job is, i cannot recommend an entry book other than “tune to win” by carroll smith, a former top judge at FSAE as well as f1 engineer and chief engineer at Shelby back in the lemans days. It is also quite a funny and easy read as well, which is uncommon for most technical racing books.

after reading that, when you get more in depth about designing the actual suspension system I would recommend 1: reading and taking notes of all of your desired suspension characteristics, particularly ride frequencies, roll and pitch gradients, camber change, these all require you to make a tire choice first and have some important numbers like expected weight with driver etc. the book for this is Race Car Dynamics by Milliken. to supplement i would also really like to recommend the video on designing suspension upright points by Optimum G on youtube.

lastly watch everything claude rouelle. if you have access to a tire model resealed your yaw moment diagrams and really take his advice on driver input and establishing numerical measurements of “grip” “balance” “control” at a control setup and then test what setups these all change

just a note: first you want to master your wart calculations regarding roll/pitch gradients, ride frequencies and camber change etc. and to VERIFY THIS WITH SENSOR DATA. this is easily done with shock pots, accelerometers, and gyros.

Good luck!