After his father died, Kojo had to quit school to help his mother collect firewood to sell at the market. When his mother receives a loan from some village families, she gives a little money to her son.

With this tiny loan, Kojo buys a hen.

A year later, Kojo has built up a flock of 25 hens. With his earnings Kojo is able to return to school. Soon Kojo's farm grows to become the largest in the region.

Kojo's story is inspired by the life of Kwabena Darko, who as a boy started a tiny poultry farm just like Kojo's, which later grew to be the largest in Ghana, and one of the largest in west Africa. Kwabena also started a trust that gives out small loans to people who cannot get a loan from a bank.

One Hen shows what happens when a little help makes a big difference. This help comes in the form of a microloan, a lending system for people in developing countries who have no collateral and no access to conventional banking. Microloans have begun to receive more media attention in recent years. In 2006 Muhammad Yunus, a Bangledeshi economist who pioneered microloan banking, won the Nobel Peace Prize.The final pages of One Hen explain the microloan system and include a list of relevant organizations for children to explore.