Check sites like Blocket or Tradera . Because students move through A1 and A2 quickly, you can often find the textbook and exercise book as a bundle for a fraction of the retail price. How to Use the PDF/Books Effectively
Simply having the PDF isn't enough; you need a strategy. The Rivstart curriculum moves quickly.
Natur & Kultur offers a web-based version of the book. When you purchase a physical or digital copy, you often get access to their online portal, which includes audio tracks —which are vital for mastering that tricky Swedish "sing-song" accent.