I subscribed to these at my child's daycare, but I stored them at home without reading them much. No individual sales, and please refrain from price negotiations. Immediate purchase is welcome. - Looking for My Shadow - Where Does the Wind Come From? - Insect Life Guide - The Microscopic World - Analog? Digital? - The Shape of Water - Why Round? - Weight and Force - My Math Picture Diary - Heat Travels - What is a Dream?