Omar AntolínThere is much truth to this post about about #math textbooks.
Mei Lin 
@oantolin
Wasn't there a Feynman story about how he tried to help the school board of the place he lived at to select a new math book and has similar experiences?
With the unassuming one being the best in his opinion, while the fancy ones were crappy?
Or do I remember incorrectly?
Utkarsh