Snails are gentle, easy-to-observe invertebrates that thrive in simple, stable terrariums. Their slow pace, varied species and fascinating behaviors make them great for beginners, families and anyone curious about small living ecosystems. This handbook gives readers a clear, practical guide to choosing species, building a healthy enclosure and supporting natural activity throughout each life stage. You'll learn how to select beginner-friendly snails, how size and temperament differ across species and what to expect as they grow. The book explains how a bioactive terrarium works, how to balance humidity and ventilation, and how to use soil, leaf litter and live plants to create a clean, self-maintaining environment. Nutrition chapters cover calcium sources, leafy greens and routine feeding habits that support shell strength and steady growth. You'll also find guidance on harmless cleanup-crew invertebrates, simple cleaning routines, breeding basics and what to watch for when monitoring eggs and hatchlings. Whether you're starting a small home terrarium or adding snails to an educational setup, this handbook offers a friendly, confidence-building introduction to keeping snails healthy, active and easy to enjoy.