Fav Consecutive Albums by An Artist

There are periods where an artist or a group reach a creative peak and release a series of consecutive albums that are all masterpieces. These are an artists' Golden Age. Just curious, but what do you consider the golden age records of your favorite artists. Must be consecutive and "Greatest Hits" not allowed.

My fav is Stevie Wonder from:

Music of the Mind
Talking Book
Innervision
Forfillingness First Finale
Songs In the Key of Life

Five incredible albums in four years.