Alphonse Mucha (July 24, 1860 – July 14, 1939) It's one of the most impressive artists of Art Nouveau. He was an illustrator which gave an astonishing mood to his works. The lines are fluid with wonderful curls and clean colours. The stroke is perfect, the faces full of details, giving life to the characters of the work. My favourite pieces are "The Art" ("The Music" is shown in this post) and "The Seasons".

It's one of my favourite design studios. It's based in London and you've certainly heard about it before as the creator of design for British Council, La Villette, V&A Museum and more. Michael Johnson has published an interesting book called "Problem Solved" showing a large number of creative questions with they respective (smart) answers. You can buy it from amazon.co.uk. You can also buy some posters by clicking the shopping menu in Johnson Banks site.