The 15th international workshop on Visualising Biological Data takes place *online* and *in-person* at Magdalene College, University of Cambridge, from 8th-11th April. In person registration and poster upload (for registered participants closes 31st March. Sign up at https://vizbi.org/2025/Registration VIZBI 2025 consists of a one-day Masterclass and three-day workshop. Participants are invited to submit posters and lightning talks describing their work, and artistic images for the Art & Biology showcase. The masterclass is aimed at anyone interested in learning about and improving their skills in data visualisation, visual design and animation. It features talks from Drew Berry (WEHI), Andy Lomas (Goldsmiths), Barbora Kozlikova (Mazaryk), Christian Stolte and Daniel Hahn. See https://www.datavismasterclass.org for more details. The main workshop features keynotes on the use of visualisation for narrative storytelling (Laura Garrison, Bergen), AI and Machine Learning (Marc Streit, Vienna), and 2D and 3D data visualisation (Tobias Isenberg, INRIA Paris-Saclay). A further 18 plenary speakers will cover the latest tools and techniques for gaining insight into life sciences data from DNA, RNA, Protein, Cells, Tissues & Organisms through to Populations. We hope to see you in person or online in April! Jim Procter (to subscribe/unsubscribe the EvolDir send mail to golding@mcmaster.ca)