https://www.youtube.com/watch?v=6W_8jESredM
Reviews Chess For Educators and interviews with Karel van Delft
English
http://www.blackandwhiteindia.com/2021/03/chess-at-age-2-yes-says-dutch-trainer.html
https://learningchess.net/blog
https://mailchi.mp/caa14a2e14a1/first-rank-newsletter-46?e=e094acced4
https://www.chessmatec.com/post/karel-van-delft
https://www.newinchess.com/chess-for-educators
Review Chess For Educators British Chess News Richard James
German
https://schulschachstiftung.de/2021/02/10/neues-schulschachbuch-von-carel-van-delft
Italian
http://www.scacchiascuola.it/?a=CookieConsentTrue
Dutch
Hans Böhm YouTube interview https://www.youtube.com/watch?v=mqXSPa9-zfM
https://www.schaaksite.nl/2021/03/19/recensie-chess-for-educators-van-karel-van-delft
https://www.schaaksite.nl/2020/11/26/in-de-schijnwerpers-karel-van-delft
https://schaakweek.nl/2021/03/26/chess-for-educators
https://mailchi.mp/50fc9c60092a/winter-lockdown-tijd-voor-een-schoolschaakboek?e=0d43817265
CHESS april 2021
Bab Wilders in Nederlands Dagblad
