For some bio on Ilmari ..:
link! (great blog as well...)
(this link is in Finnish, but has good examples of his design work)
another link...! (A good, quick to the point bio.)
Tapiovaara designed the 'domus' chair for a Finnish university, it was made out of reformed plywood and had a elegant design that embraced natural form. The use of wood also allowed for the stacking process to be very quiet.