Viruses: a natural history

Viruses, which are parasites that are often hundreds of times smaller than bacteria, exist in and on everything, everywhere. They evolve rapidly, are highly opportunistic, and are relentlessly efficient. While some viruses are obvious agents of disease, as the COVID-19 pandemic has well reminded the world, others can be beneficial, helping to protect their hosts from other microbes or enabling hosts to function in ways that would otherwise be impossible. In *Viruses*, virus expert and author Marilyn Roossinck presents a comprehensive and richly illustrated introduction to viruses that reveals their true nature.

Using animated text, clear graphics, and beautiful images, *Viruses* examines all aspects of viruses that are essential to understanding them: their diversity, behaviors, life cycles, and much more. Written in a non-technical and easy-to-follow style, the book covers what viruses are and where they come from; how they are transmitted and evolve; the battle between viruses and hosts, including immunity and vaccination; viruses that are good for us; the crucial role viruses play in balancing Earth’s ecosystems; what makes a virus (including COVID-19 and the flu) become a pandemic in plants or animals; and cutting-edge research discovering thousands of new viruses. Each chapter concludes with stunningly illustrated profiles highlighting key viruses.

In a world where understanding viruses is more important than ever, *Viruses* offers a rich and engaging introduction to the organisms that, despite all the harm they can cause, are also essential to the health of animals, plants, and the world we share.