The facts about bizarre space objects
Beyond the age of fossil fuels
This junior science series has been sold around the world.
Amazon commenter Dave says of 'Black Holes': "This was a big hit with my black-hole obsessed seven year old son. He's read it from cover-to-cover at least a dozen times. It's clearly written, well illustrated, and provides the right level of information..."
I'm pleased you both like it, Dave.