© 2018, 2019 by David Jefferis. 'Ex Scientia Lux Lucis.'

SCIENCE FRONTIERS

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.

Black Holes

The facts about bizarre space objects