Symmetry of Solids
The graphic on the right shows the 7 lattice systems (left-hand column) and the 14 Bravais Lattices.
Remember: You only need to focus on the three cubic Bravais Lattices.
Your teacher will also talk about "Hexagonal Close-Packed", which is "Hexagonal" in this diagram, because it is one of the most efficient at holding spheres (i.e. atoms)