E. Richard Churchill,Louis V. Loeschnig, and Muriel Mandell are authors of books in the No-Sweat Science series, published by Sterling Publishers. They each have written several other science-related books for children and young adults.E. Richard Churchill,Louis V. Loeschnig, and Muriel Mandell are authors of books in the No-Sweat Science series, published by Sterling Publishers. They each have written several other science-related books for children and young adults.E. Richard Churchill,Louis V. Loeschnig, and Muriel Mandell are authors of books in the No-Sweat Science series, published by Sterling Publishers. They each have written several other science-related books for children and young adults.