There's a tutorial to get the very basics of Smalltalk/Pharo called ProfStef. Here's an online version: https://amber-lang.net/learn.html
It has a built-in version on Pharo images as well.
https://exercism.org/tracks/pharo-smalltalk
And this if you want to feel not alone in the first steps:
https://www.youtube.com/watch?v=YQ-kAQWMMTQ
There's a tutorial to get the very basics of Smalltalk/Pharo called ProfStef. Here's an online version: https://amber-lang.net/learn.html
It has a built-in version on Pharo images as well.