Chronology
- 1930s
- Unwilling to have his work judged by others, Glankoff refused to join the WPA. Did illustrations for St. Nicholas, Scribners, The New Yorker, Family Circle Magazine and for his brother Mort Glankoff's CUE Magazine where he created the comic illustrated character of "Mr. Petworthy". Created paintings in oil as well as woodcuts. Despite the fact that Glankoff was prolific both in his personal and professional work throughout this decade into the 1940s, few paintings from this period remain.
- 1935
- Returned to New York City taking an apartment on East 33rd Street, commuted to Woodstock.
- 1942–46
- Worked as head artist for True Comics.
- 1940–1950s
- During this time Glankoff became more interested in using water-based inks for printing instead of oil-based. His woodcuts became less figurative and more abstract, a shift conveyed in small abstract collage monotypes and small casein paintings on paper. Symbolism and primitive ideas began to surface in his work.
- 1955
- Began designing toys full time for Kornblum's toy import business Impulse Items. Over the course of fifteen years, Glankoff designed and fabricated over 200 new toy ideas. Glankoff produced the first Babar the Elephant stuffed toys and created the prototype of Dr. Seuss' Cat in the Hat.