Ming Tan is a Singaporean mother of three children. She loves museums and monuments, heritage walks and nature trails, and has designed travel experiences to reveal the natural world and cultural heritage around us. Seeking to engage as well as inform, she believes that the best stories connect us to the world around us. Clean and Dirty complements her earlier book Near and Far, which explored social distancing through the lens of how animals maintain closeness without physical contact. 

Ali Shandi Ramadan lives in Surabaya, Indonesia. His designs and illustrations are inspired by manga, anime and his two beautiful children. Ali holds a Bachelor of Arts in Visual Design from the Sepuluh Nopember Institute of Technology, plays football, and loves running around randomly in the yard.