"Warning: choking hazard - small parts. Not for children under 3 years"--Cover.
British ed. has title The icky, sticky, snot and blood book.
Summary
Everyone knows where snot comes from, but why is it there and what does it do? Discover what breathtakingly smart things our bodies do with the air we breathe.Take a roller coaster ride around the human respiratory and circulatory systems with this heart-pounding guide.