Looking for a comprehensive yet digestable statistics book that is for beginners and acts as a great refresher for seasoned data scientists? OpenIntro Statistics (3rd edition) is a great book to start from beginning to end although we recommend you jump around and check off sections in the contents as you go so you can keep motivated. This book by Mine Çetinkaya-Rundel, David M. Diez, and Christopher D. Barry is packed full of practice problems and solutions in addition to its thorough explanations. The best part is that you can download the PDF for FREE although we recommend buying the book also to support the great work of these authors. You can access the PDF or order the book at the OpenIntro Statistics website.