Ashoo Kalra has been associated with reputed institutions. She is presently Vice-Principal, Delhi Public School, Varanasi. She is a prolific author andbrings to her content, gleanings from a rich experience as an educator.S. Latha has an experience of over 13 years of teaching maths. She has been a recipient of the Ramanujan Award in 2012 for the best maths teacherand the Wipro Smart Teacher Award in 2008. She is currently associated with Pushpalata Matriculation Higher Secondary School, Tirunelveli, Tamil Nadu.