The numbers \[\; \ldots, -3, -2, -1,0,1,2,3, \ldots \;\] are integers.
We can place these numbers on the number line.
The numbers to the right of #0# are #\blue{\text{positive numbers}}#. The numbers to the left of #0# are #\green{\text{negative numbers}}#. The number #0# is non-positive and non-negative.