Bolton-Menk: The engineering firm offers e-books for children. The latest is Lindsey the GIS Specialist. It joins books about civil engineering and landscape architecture. Commenters on Reddit/r/GIS noted the GIS title might be valuable for adults, as well. Via Dawn Wright.
Two Historical Story Maps: Via my colleague Joseph Kerski: "Both of these are extensively researched and well done maps from an upper-level undergraduate student at the University of Northern Colorado." He notes The Declaration of Independence and the American Revolution and The Negro National League and African-American Mobility, 1920-1931.