Does anyone know if these guides were authorized by Nintendo?

[My Pet Albatross]

Super Mario Bros. 3 Kanzenhan
Super Mario World Kanzenhan

I'm pretty sure the publisher is Jitsugyo no Nihon Sha.

 

[Ten]

(smw is on top and smb3 is on bottom)

judging on the final page having copyright from nintendo i would say yes!

 

[My Pet Albatross]

View attachment 27765
View attachment 27766

(smw is on top and smb3 is on bottom)

judging on the final page having copyright from nintendo i would say yes!

Awesome, thanks.