(by Michaela Šebőková Vannini): Widely considered one of the best modern options, this book includes audio recordings and is designed for absolute beginners to intermediate learners. You can find a sample PDF chapter at Eastone Books Taliančina pre samoukov
This is a classic series in Slovakia. While it is often used in schools, the older editions are fantastic for self-study because they are very text-heavy. If you can find a PDF of this, print it out and use it as your "drill sergeant."
: This is often considered the best modern choice. It includes a textbook and an MP3 CD, making it ideal for practicing both grammar and pronunciation. A companion workbook is also available to reinforce the material. Taliančina pre samoukov (Michaela Saccardinová)