Posthuma Sieb : A pond full of ink : poems / by Annie M. G. Schmidt ; Illustrated by Sieb Posthuma ; translated by David Colmer.
Posti Pietari : What would she do? : 25 true stories of trailblazing rebel women / Kay Woodward ; illustrated by Andrew Archer, Anna Higgie, Jessica Singh, Jonny Wan, Kelly Thompson, Pietari Posti, Sofia Bonati, and Susan Burghart.
Poston Elizabeth 1905 1987 : The Gambit book of French folk songs. Collected and selected by Paul Arma; arr. and translated by Elizabeth Poston; illustrated from designs of popular tradition by Edmée Arma.