Insects, one of the most successful groups of animals on Earth, exhibit an astounding diversity and play crucial roles in maintaining the balance of ecosystems. With over a million known species and an estimated 10 quintillion individuals, insects dominate the animal kingdom. In fact, a quarter of all animals on the planet are beetles, while butterflies and moths account for one in every ten animals. The immense significance of insects in the natural world cannot be overstated. They are responsible for essential ecological functions, from pollinating plants to decomposing organic matter. Without them, life on Earth as we know it would be drastically altered. Steve Nicholls, in his comprehensive work, "Alien Worlds," delves into the evolution and biology of insects, drawing on his extensive experience as a writer, photographer, and filmmaker of the natural world. Each chapter of the book explores specific traits of insect life that have contributed to their remarkable dominance over terrestrial and freshwater environments. Nicholls examines their remarkable reproductive abilities, their intricate relationship with flowering plants, their exceptional care for their offspring, and their complex social lives. "Alien Worlds" delves into the identity of insects and seeks to explain the staggering diversity within this group. Nicholls explores the reasons behind their remarkable abundance and examines the impact of wings, a defining feature unique to insects and other flying invertebrates. The book also illuminates the extraordinary sensory capabilities of insects, highlighting their ability to perceive the world in ways vastly different from our own. This extraordinary work seamlessly combines captivating imagery with engaging scientific writing, thanks to Nicholls' expertise as an entomological specialist and a nature photographer. He presents the subject matter in an entertaining yet rigorously scientific manner, making the book accessible to both experts and enthus