Liverpool fans and their passion surprised Klopp the most when he joined the club.
The German coach will be completing six years with the Merseyside club and has won the Premier League, Champions League, Club World Cup and UEFA Super Cup with the Reds.
The 54-year old manager reflects on the time when he first joined the club.
“The passion. I knew about it, but not the extent of it. So the love for the club,” Klopp told This Is Anfield.
“Liverpool FC is obviously a massive club, a worldwide brand and stuff like this, but inside we are really small – in a good way. So really together.
“At Mainz I was a player and then a coach, so I never had to change anything.
“I could wear the same clothes, nobody asked me to behave like I’m the manager, it was just the day before I was a player, so why should I change? That was pretty easy-going.
“Then you come to Liverpool and you start thinking again that’s the case. But I was obviously already grown-up, matured, and didn’t have to change again.
“So that’s really nice, that you can be who you are, how you are, or can stay who you are, how you are, in such a massive club.
“It was a surprise about that, maybe not a surprise, so [I was] really pleased.”