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In You Know What?, beautifully Illustrated by Nynke Talsma,  Oliver uses his nighttime rituals to win some time before going to bed. The story is playful and humorous and one that most families will relate to.


It came out in Dutch, December 2016 and is available here.  The English version came out September 2017 and is available on Amazon and it is always great to support your local bookseller. The Korean language edition released 2019 and Chinese and Arabic language editions are in process. Check back for updates.

You Know What? received a literary award: CLEL (Colorodo Library Early Literacy) Bell Picture Book Awards Nominee for Talk (2018) and was a finalist for the 2018 Crystal Kite award in the Northeast region.


ISBN: 10-9044828576  

ISBN: 13-9789044828573

Watch the book trailer here.


Read the interview with the illustrator here