Secondary school students in Nandi North District have consistently performed poorly in English and Kiswahili in Kenya Certificate of Secondary Education examinations. This book therefore has investigated and presented the salient findings on the performance of Nandi North Secondary Schools Students in English and Kiswahili, has examined and outlined the students’ attitude towards English and Kiswahili. Perceptions of secondary school students on teachers’ methods of instruction, teachers’ use of learning facilities and students’ exposure and motivation have also been well outlined. The book has also revealed the relationship between performance in English and Kiswahili and other variables including students’ attitude, teachers’ methods of instruction, teachers’ use of learning facilities, students’ exposure and motivation and students’ mother tongue. Finally, the book has articulated how teachers perceive English and Kiswahili in secondary schools in relation to the factors associated students’ performance in the subjects.