Multimedia Design

Richard Mayer is one of the leading scholars on the design of multimedia materials and instruction that makes use of multimedia. 

His chapter form the 2014 edition of the Handbook of Research on Educational Communications and Technology details his multimedia design principles:

Mayer R.E. (2014) Multimedia Instruction. In: Spector J., Merrill M., Elen J., Bishop M. (eds) Handbook of Research on Educational Communications and Technology. Springer. https://doi.org/10.1007/978-1-4614-3185-5_31