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Helvetica is a sans-serif typeface originally released in 1957 and designed by Max Miedinger and Eduard Hoffman. It’s become one of the most popular fonts used all over the world. It was used by Apple, American Apparel, Target, the New York subway system and many others. This major success led to the creation of Helvetica - a 2007 documentary made about the typeface, its history and how it affected our lives.
Source: zilliondesigns.com

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Avenir is a sans-serif typeface designed by Adrien Frutiger in 1988. Avenir was based on two typefaces, Erbar and Futura. Frutiger described the typeface as having a human touch, unlike the cold and mechanical Futura. Avenir is used as the principal typeface of the city of Amsterdam’s corporate identity. It is also used by the Eurovision Song Contest, as well as the Maps and Siri apps by Apple.
Source: typedia.com

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Comic Sans is a sans-serif typeface designed by Vincent Connare in 1994 with the purpose to fill in the speech bubbles in a program called Microsoft Bob. Inspired by comic-book speech bubbles, this typeface has become one that designers love to hate and it even has a website dedicated to its abolition. Now it’s mostly used as a joke or for children’s school projects.
Source: dezeen.com

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Futura is a sans-serif typeface that was designed by Paul Renner and released in 1927. Renner strongly followed the Bauhaus design philosophy. He believed that a modern typeface should reflect modernity, therefore he used geometric proportions and clean forms. Futura was the first typeface on the moon, as it was chosen for a commemorative plaque left by astronauts of Apollo 11. In addition to that, Stanley Kubrick used Futura in many of his films, including 2001: A Space Odyssey. Now it’s used by Louis Vuitton, Best Buy, Absolute Vodka and many others.
Source: idsgn.org