Gr 2-4–Short, two-page chapters provide straightforward facts about these featured topics. Each book contains two- to three-sentence paragraphs along with color photographs of places and artifacts on each spread. Egyptian Treasures describes antiquities and customs. Extreme Places presents a variety of radical locations inhabited by humans, such as the coldest and hottest, wettest and driest, most polluted, most remote, and earthquake and flood zones. Roman Soldier's Handbook provides reenactments of battles and prepares readers as if they were to join the Roman Army and what to expect during their term of service. What the Romans Did for the World explains that the ancient Romans introduced the Celts to their language, eating utensils, baths, and toilets.