Science Comic Survival Series 20-Book Set "Survival of the Atomic Power 1, 2" "Survival of Air Pollution" "Survival of Earthquakes" "Survival in the World of Plants 1, 2" "Survival of Abnormal Weather 1, 2" "Survival in the World of Insects 1, 2, 3" "Survival of Microbes 1" "Survival in the World of Dinosaurs 1, 2" "Survival of Water Shortage" "Survival of Energy Crisis 1, 2" "Survival of Tornadoes" "Survival of Volcanoes" "Survival of the Deep Sea" "Survival of the Sea" All books were purchased new and stored on a bookshelf. The covers show some signs of use, such as minor scratches, scuffs, and creases, but the contents are in good condition. For those who understand that these are used items, thank you for your consideration.