[1][5] Over her career she published some 17 books, which were written in a unique, free-verse style and illustrated with whimsical line drawings by her husband.
Her highly accessible writings were praised by no less than Albert Einstein, Cassius Jackson Keyser, Eric Temple Bell, and S. I. Hayakawa.
[1] In addition to enlivening her books with illustrations (or "psyquaports" [7]) by her husband, Hugh Gray Lieber (who was head of the Department of Fine Arts at Long Island University), Lillian often chose an unusual scheme of typography which is self-explained in this example from her Preface to The Education of T. C. MITS: T.C.
MITS was an acronym for "The Celebrated Man In The Street," a character who, like George Gamow's Mr Tompkins, served as a device for bringing concepts in higher mathematics and physics to the general public.
The MITS character was central to Lieber's populist approach to education, and she often laced her expositions with passages extolling the virtues of the democratic system.
[8] Although her works were broadly influential (including a special paperback edition of The Education of T. C. MITS that was circulated to American servicemen during World War II), they remained out of print for decades.