The purpose of this book is to assess the school-based factors influencing adoption of ICT in administration of public secondary schools in Makadara district, Kenya, specifically to establish the availability of ICT resources for use in administration in public secondary schools in Makadara district; assess the attitudes of school administrators towards adoption of ICT in the administration of public secondary schools in Makadara district; determine the availablity of ICT technical support to help in the use of ICT in the administaration of public secondary schools in Makadara district; establish the ICT skills use in the administration of public secondary schools in Makadara district. The study found that the school administrators had very few computers for administration work in the district. The computers were used for Capturing school enrolment, storage of student bio data, registration of KCSE candidates, data entry on students' marks, analysis of student's results, typing examinations, accessing the internet, and for research on the subjects they taught. Only one third of the schools in the district had school management systems and only one school had a web enabled system.