The purpose of this study was to establish the extent of use of picture books as instructional materials in teaching preschool pupils English oral skills in Tigoni Zone, Kiambu County. The study used descriptive survey design to get information from all the preschool teachers in the study area. The data was analyzed using descriptive statistics which involved tabulation of data into frequencies and percentages. Analysis of the results revealed that picture books were was poorly utilized for teaching oral skills. The study revealed a need to develop policy frameworks by Mo EST and KICD to ensure accurate planning for better remuneration, integration of instructional materials in the curriculum and availability of infrastructure conducive for better preschool education and other similar studies in different areas utilizing qualitative or mixed methods to delve into other underlying issues for poor utilization of picture books as instructional materials.