Christopher Lovelock is a very smart man who knows a lot about something called "services marketing." This means he knows how to make people like and want to use certain services, like going to a nice restaurant or getting a haircut.
He used to teach at a big university and wrote lots of books about services marketing that other smart people would read and learn from. He also helped businesses and companies figure out how to make their services better, so that more people would want to use them.
Basically, think of Christopher Lovelock as a really cool teacher who specializes in helping businesses make their services better for you and me.