IDEA is a Japanese / English language magazine that focuses on graphic design and typography. Published quarterly in Tokyo, Japan, its first issue was in 1953. The following scans are from issue 170 published for 1982 and feature artworks by the designers Stephan Kantscheff, Jim Heimann, Jacques Poirier, Jacques Richez and Yōji Yamamoto.
Stephan Kantscheff (Bulgaria)
Jim Heimann (US)
Jacques Poirier (France)

Jacques Poirier. L to R – illustration for an article “Intermission” for Pilote magazine. Portrait of Louis Armstrong for Phosphore magazine. Illustration for an article “Toreador”. Cover illustration for Vie Publique Journal.

Jacques Poirier. L to R – cover for Nourriture Dietetique Magazine. Illustration for an article “Excentric Millionaire”. “Personal research produced to please the author’s daughter”.
Jacques Richez (France)
Yōji Yamamoto (Japan)
Thanks for looking. More images from Idea 170 coming soon.
Image sources: Idea 170, 1982. Copyright Idea. Scanned by The Vintage Toy Advertiser for information and research purposes.