Stephen Muhindi Murimi is a teacher by training and has taught the sciences in various high schools in Kenya and elsewhere. Stephen helped to open the first high school in Warrap State in post-war South Sudan, heading the chemistry and agriculture departments. He has also worked in agricultural extension for many years with local farmers. Stephen helped to train coffee farmers in Ndumberi, just north of Nairobi, on important agroforestry techniques which allowed many of them to become certified through UTZ (Netherlands), Fair Trade (USA), and Rain Forest Alliance (USA). Stephen appreciates trees beyond his work – he marks most events in his life by planting trees. He has trees that marked his last day in primary school, high school, and university and special events such as births.