Van Andel studies historic botanical collections and knowledge systems behind them. She aims to digitize and "decolonize" these collections to improve accessibility to both researchers and to the people in the countries where the plants and knowledge originally came from. Van Andel graduated with a Master's degree in Biology from the University of Amsterdam. She earned her PhD in Ethnobotany from the National Herbarium of the Netherlands, Utrecht University in 2000 and stayed on to complete her postdoc from 2005-2009. From 2010-2015, van Andel conducted a second postdoc at
Naturalis and Leiden University. She was granted an NWO Vidi Award in 2009, titled "Plantgebruik uit moeder Afrika" (in English, "Plant use from Mother Africa"). in 2015, van Andel was appointed Special Professor of Ethobotany at Wageningen University, and later that year as Special Professor of History of Botany and Gardens at Leiden University, where she holds the Clausius Chair. == Awards and honors ==