The International Typographic Style, also known as the Swiss Style, is a graphic design style developed in Switzerland in the 1950s that emphasizes cleanliness, readability and objectivity. Hallmarks of the style are asymmetric layouts, use of agrid, sans-serif typefaces like Akzidenz Grotesk, and flush left, ragged right text. The style is also associated with a preference for photography in place of illustrations or drawings. Many of the early International Typographic Style works featured typography as a primary design element in addition to its use in text, and it is for this that the style is named.
– Excerpt from Wikipedia