Leica ScienceLab is a comprehensive knowledge portal provided by Leica Microsystems, offering a wealth of scientific research and teaching material on microscopy. It is designed to support beginners, experienced practitioners, and scientists in their daily work and experiments. The platform features a searchable database of articles, webinars, and tutorials covering a wide range of topics from basic microscopy principles to advanced high-end technologies. It includes resources tailored for various fields of application, such as life science research, industrial microscopy, and medical specialties. ScienceLab aims to foster a community where users can learn, share, and contribute their expertise, providing insights into topics like microscope calibration, polarized light microscopy, and selecting dissecting microscopes. It also highlights collaborations with world-leading imaging centers and features contributions from Leica ScienceLab authors and institutions. This digital resource is invaluable for anyone looking to expand their knowledge, research capabilities, and practical applications of microscopy across diverse scientific disciplines.