What book or program do you recommend for learning how to code for a beginner.

Hi,

I am looking to learn how to code. I have taken a class in high school where I did a little work with Alice and Greenfoot. Is there any recommended way to learn how to code and use that knowledge to make apps? I have seen a lot of programs and books focused on developing code on a windows pc for beginners but none for people on Macs.

Thank you!