Levi Sap Nei Thang is an independent writer with an interest in the history, symbolism, and cultural significance of plants and flowers. Her work explores how plants have influenced human traditions, art, and national identity across different cultures. Through careful research and accessible writing, she presents botanical subjects in a way that connects natural history with cultural heritage. Her publications focus on the stories behind well-known flowers and their importance in societies around the world. In The Golden Flower of Thailand: Ratchaphruek (Cassia fistula), she examines the botanical features and cultural significance of Thailand's national flower, highlighting its enduring symbolism and beauty.