When you look up into the night sky in the Northern Hemisphere, two of the easiest constellations are the W-shaped constellation of Cassiopeia and the Big Dipper (or the Plough) in Ursa Major.

These are the 2 constellations I look for first on any given night I setup my telescope. They are great starting points for some serious star hopping.

From here

Having found the Big Dipper or Cassiopeia, a journey of many discoveries opens up.