Swift for Good

They write: Each author has written one chapter on the topic they think is most important for today's Swift developers, from functional programming to SwiftUI and beyond.
You learn: Whether you're a junior developer or already have years of experience behind you, Swift for Good has a range of topics at all levels to help take your skills further.
Everyone benefits: None of the authors get paid, but instead our revenue goes directly to charity so that we can make a difference to the wider world as we share our learning.