Redesigning a logo can be a demanding task — a bad design can leave an indelible mark on how people view your business.

Instagram was one such example: the switch from a retro-style camera icon that was designed in 45 minutes to a more abstract one with a rainbow gradient left many people feeling disappointed.

But other times, aesthetic changes can really hit the mark. Below are nine redesigned logos that deserve kudos, according to designers. For the sake of comparison, the original logos are on the left, with the new redesigns on the right.