What is the Hob Why must they have this place What business dose katniss do there?

The Hob is a black market gathering place in "The Hunger Games" series where residents of District 12 trade goods and services away from the prying eyes of the Capitol. It serves as a crucial lifeline for the impoverished district, allowing people to barter for food, supplies, and information. Katniss Everdeen often visits the Hob to trade her hunting catches, such as game and other resources, to support her family and navigate the challenges of survival in a harsh environment. The existence of the Hob highlights the resourcefulness and resilience of the district's inhabitants in the face of oppression.