The educational picture book "Mars: An Invitation to Earthlings" is created for preschoolers who dream about space. Here, the friendliest neighbor of the Earth, who is very much looking forward to meeting the smallest earthlings, invites them with interesting things about himself. Mars tells readers that it has two satellites, deep canyons and the largest volcano (the Earth never dreamed of such a thing). And its day is longer than Earth's by as much as 37 minutes! This cosmic autobiography in every sense will cheerfully prepare preschoolers for interplanetary travel.