What Hungarian-born photographer, who had a profound effect on hand-held photography, died in New York in 1985 leaving behind 100,000 negatives, many of which to this day remain unseen?

What designer, typographer, & painter wanted to be a chemist but when his parents couldn’t afford tuition turned to art, eventually co-founding one of Switzerland’s best-known ad agencies?

Answers here~ https://schristywolfe.com/2015/07/02/july-2/