title_body: What is the relationship between addresses and stake addresses? Can anyone tell me if an address can change its stake address? If so when does this happen?
  Is there a good place to read about how the addresses and the stake address are related?
upvoted_answer: Usually, the Shelley address contains the staking address inside (delegation part), so it is not possible to change it. But they are other types of addresses.
  One of the best resources to learn about Cardano's addresses is CIP19: Cardano Addresses.