Who does the Mocking jay pin remind Katniss of and why the hunger games book?

The Mockingjay pin reminds Katniss Everdeen of her younger sister, Prim, who gave it to her as a token of protection and love. It symbolizes hope and rebellion against the oppressive Capitol, as well as Katniss's role as a reluctant symbol of resistance. Throughout "The Hunger Games," the pin becomes a powerful emblem of her journey and the sacrifices made for her family. Ultimately, it represents the bond between Katniss and Prim, serving as a reminder of what she is fighting to protect.