What type of songs does John Mayer write about?

Its mostly love songs, about relationships but other stuff to. Loads of other topics like "Daughters" is about daughters lol, or "Waiting On The World to Change "is about change, or "Say" and "Belief" is about believing in yourself and all that self motivational stuff. "Stop This Train" is about growing up. His debut album had songs about the struggle he faced while to was trying to make it big in the industry, songs like "No Such Thing" and "Why Georgia" indicate that. So mostly its about love and life.