Why it is hard to bring your own cup to buy coffee
My morning ritual is not complete without a cup of Kopi C Kosong to wake my brain up. Despite being fully aware that single-use plastic waste is...
network effect
How Preply cracked the Cold Start Problem to build a network of online tutors and students
Preply‘s value proposition as an online learning platform is simple: remove the geographical boundary between teachers and students. Teachers have access to a global pool of students...
