The timely Super Science Feats: Medical Breakthroughs series (4 new titles) not only focuses on topics related to COVID-19 but specifically mentions the virus in each installment. Using large images (including historical photos and stock images) and clear, straightforward text, the books introduce a health problem and explain how scientists problem-solved to address it and how the treatment works. Germ Theory conveys how scientists studying the spread of diseases determined that germs were the culprit and how readers can stop the transmission of more germs. Graphs and labeled images clarify concepts from the text, while short sidebars add interesting facts. Each volume concludes with a hands-on activity that further conveys the book's overall theme. A solid series to help children understand modern health care and practices.