Conversation so far:
What is the Realist Manifesto?
Courbet wrote a Realist manifesto for the introduction to the catalogue of this independent, personal exhibition.
Who did he send the Realist Manifesto too?
CANNOTANSWER.

Question: What was included in the Realist Manifesto?
Self-contained rewrite: What was included in Gustave Courbet's Realist Manifesto?