Sean Ellis vertelt over het succes van Growth Hacking

Subscribe to the channel to watch all new videos as soon as they come out. "GROWTH COMES IN STAGES. IF YOU FAIL THE FIRST STAGE, YOU'RE GOING TO FAIL THE NEXT STAGES," SEAN ELLIS SAID AT THE RECENTLY HELD SYDSTART CONFERENCE.

https://www.youtube.com/watch?v=i0nxESR9sFs&t=52s