Here, leading designers and illustrators revealed the biggest lessons they've learned, and how these have helped them run their winning design studios or practices.
01. Give designers space to hone ideas
"It takes a village to execute a complex, global design project, but you can't underestimate the importance of the individual in that process," says Lippincott's Heather Stern.
It takes one person to have the idea, but many people to execute it. I've learned how to protect an individual's idea and craft within the demands of a global design project."
It's my job to give designers the space they need to hone their ideas. We're successful when I'm able to respect that brilliance and mobilise a team to help bring it to life."
02. Making the client happy isn't enough
"The biggest lesson I've learned so far is that making the client happy isn't enough," advises Sagi Haviv, partner and designer at iconic firm Chermayeff & Geismar & Haviv.
"At the end of the day, you, the designer, must be proud of the result, and the way to achieve that is to show the client only those options that you believe in wholeheartedly.
03. Empower people
Ownership of the work and open communication is key, says Wolff Olins design director Dan Greene.
"By making people feel valued through their contribution and giving them the platform to have input into the direction of a project, it can give team members the extra 10 per cent they need to turn a job from good to great."
04. Respect everyone
"Treat people like humans and with very little hierarchy," says Snask's Fredrik Öst. "Make sure that everyone is a superstar and that everyone has a life beside their job."
05. Don't back down with tricky clients
"Be firm and clear about the fact that there's a reason why you want things to be done in a certain way," advises illustrator Sarah Mazzetti.
06. Treat every project like it'll be your best
"One of the most important lessons I've learned? To treat every new project as if it'll be the best of my career," says Northern Ireland-based graphic designer and writer David Airey.
"It doesn't matter who the client is, or what industry I'm designing for, I'm the one responsible for just how good, how interesting, how successful the result is."