In your body - Clare Hibbert

Did you know there were tiny living things on your body that you
can't
see? Some are bacteria, others are mould, others are tiny little insects!
But what do they do and what do they look like? Find out about the
good ones and the bad ones! Full-page photographs of these alien-like creatures in high magnification reveals their horror (or even their beauty). This book supports natural history studies and the KS2 and KS3 science curriculum where appropriate.

It is part of a series, Micro Monsters which takes
a close up look
at the tiny creatures that are around us all the time and which we
cannot see with the naked eye. Some are harmless, some are just pests,
and some are deadly. From bedbugs to zooplankton and from bacteria to
water fleas, all microscopic life is here. The revelation of the places
these creatures inhabit will have readers squirming in their seats as
they find out how these mini monsters can help and hinder humans.