These are some examples of albinos, cremellos, and whites:
This is a cremallo horse. This picture was donated by Jennifer Lowe
This is Billionair, an extremely rare cremello Throughbred colt (one of two in the world). This picture was donated by Norsire Farms
This is White Lady, a rare white Throughbred mare. This picture was donated by Norsire Farms
This is a pseudo-albino, or white horse. This picture was donated by Rio Rondo Enterprises