NonnyHogrogianisatwo-timewinneroftheCaldecottMedal.Shewasawardedthemedalin1966forAlwaysRoomforOneMoreandin1972forOneFineDay,thefirstbookshebothwroteandillustrated.
Shestartedhercareerasabookdesigner,butsoonbeganillustratingherownbooks.SincewinningherfirstCaldecottMedalshehascreatedanimposinglistofoutstandingbooks.AmongthemareApples,awordlesspicturebook;Paz;AboutWiseMenandSimpletons,TwelveTalesfromGrimm;VasilisatheBeautiful;andSirRibbeckofRibbeckofHavelland.ThelasttwowereA.L.A.NotableBooks.
SheismarriedtothepoetDavidKherdian.TheyliveinanoldfarmhouseinLymeCenter,NewHampshire.