Data literacy, that is, the ability to navigate the world of data, is a key skill of today. Billions of messages are posted on social media every day, email inboxes across the planet are buzzing with letters, and every connected car produces terabytes of data, not to mention online stores, payment systems and government digital services. However, a minority still knows how to work with data, analyze it and use it for business, and there is a catastrophic shortage of specialists. For those who want to learn to speak the language of data confidently, recognized expert in the field of data literacy Jordan Morrow wrote his book. This practical guide will enable even a non-expert to master the four basic levels of analytics and learn how to make effective data-driven decisions to get the most out of information and be successful in a fast-changing digital world.