No really - the book intentionally leaves out some concepts in order to make things easy for people who are learning. Although, the book has only a bit o theor

No really - the book intentionally leaves out some concepts in order to make things easy for people who are learning. Although, the book has only a bit o theory - the minimum you will what to know to be able to use the language - going trough it my be a good introduction to Swift - arrays are different from Obj-c, you have tuples and closures are first class objects. I think the answer depends on your background :)