Olakehinde Maruf Isola Olanrewaju is a teacher, an author, an educational consultant, a school proprietor and an enterpreneur. He has served in these various capacities for close to two DECADES.
He is the C.E.O. of Busybrains Phonics, an arm of OLAKEHINDE SERVICES INTERNATIONAL - an important player in Nigerian educational sector.
He has published series of books notably on JOLLY PHONICS, among which are the BUSYBRAINS PHONICS WORKBOOK SERIES (Volumes 1-9) meant for the use of Nursery school pupils; BUSYBRAINS PHONICS LEARNING SCHEME and many more. 
He has also produced several phonics learning materials like the READING THROUGH PHONICS SERIES (1-9), meant to teach reading and writing to young kids of age 3 to 6; phonics flash cards and so on.
Thousands of teachers have learnt JOLLY PHONICS and how to impact the knowledge in their pupils through various training programmes he has organised in various cities across Nigeria.
He currently runs an ONLINE JOLLY PHONICS TRAINING for teachers and prospective teachers of JOLLY PHONICS.
He is happily married with kids.