Potentials in classical electromagnetism

[spaghetti3451]

Can anyone please explain the concepts of scalar and vector potential and how they can be used to derive the wave equation for light?

References are welcome.

Thanks in advance for any help!

 

[spaghetti3451]

P.S. I am looking for a sound explanation of the motivation, derivation and consequences of these concepts. Therefore, a conceptually stimulating resource would be very much appreciated.