René Fester Kratz graduated with a Ph.D. in Botany. For the past 15 years, she's been teaching biology to a wide variety of students whose interests range from curiosity about the natural world to a desire to work in the healthcare professions. René's strong interest in science literacy motivated her to help develop science classes for future teachers and to write several science books aimed at the general public, including Biology for Dummies and Molecular and Cell Biology for Dummies. In both her teaching and her writing, René emphasises central ideas and keeps jargon to a minimum.