If you follow this link, you’ll find the book we will be using in class (Portuguese level one: “Português XXI Nível 1”). There is a description in English also, as well as – ONLY – the first Unit (both study and exercise book) of the latest edition online.
The book can also be found for purchase in amazon.com. See here.
But because it is so expensive, we will give you the possibility to make photocopies.