Final answer:
International Style poster designers favored an adoption of the machine aesthetic, emphasizing horizontal and vertical lines and creating designs that were simple, bold, and easily legible from a distance. This approach mirrored the broader architectural principles of the International Style, focusing on functionality and geometric clarity.
Step-by-step explanation:
Poster designers working in the International Style often utilized a specific set of design principles, reflecting the overall ethos of the movement. The International Style is known for architectural principles, but these also influenced graphic design, particularly poster design. Adoption of the machine aesthetic was a key characteristic, which meant designers favored a functional and geometric approach.
When creating posters, designers emphasized horizontal and vertical lines to align with the International Style's preference for clean, unadorned surfaces. Furthermore, these posters often displayed an emphasis on horizontal and vertical lines, creating a sense of order and uniformity. This was reflective of the broader International Style emphasis on volume over mass and the use of modular forms.
Aside from these design features, International Style posters also had to be simple, bold, and legible at a distance. Considering that posters were often placed in urban environments, these qualities ensured that the messages were communicated effectively and unambiguously to a brief and passing audience.