Postcards
In Celeste, postcards are objects which are used to give information to the player. There are 8 postcards in the game.
Chapters 1 through 6 each contain one postcard, which gives advice about the game. It is shown to the player when this chapter's A-side is started from the beginning if it has not been fully completed before. Additionally, Core has two postcards that are shown upon completing its B-Side and C-Side, respectively. They tell the player about newly unlocked features such as C-Sides, Golden strawberries and Variants, and are shown only once.