Andrew Yeo Ann KhengAndrew Yeo Ann Kheng lives with his family in Singapore where he worked as an Air Traffic Controller for 41 years before retiring. After retirement, he was engaged as a consultant at the Air Traffic Management Research Institute (ATMRI), Nanyang Techological University, Singapore.He holds a Master of Science Degree (Information Management) from Staffordshire University, UK.His interests in the literary arts include spy thrillers based on historical events. Read More Read Less