This summer school will be focused on the practical use of in silico tools in predictive toxicology and risk assessment. The materials will be aimed at scientists and practitioners who are not necessarily experienced modelling experts, but have been or are starting to use such methods in their data management, analysis and modelling work, and would like to improve their competency and skills in using methods, tools, models and software. The school will include an introduction to topics and hands-on group exercises using open science tools supported by our new initiative to deploy OpenTox and related open science resources to the European Open Science Cloud. All activities will be carried out online (virtual meetings, Slack, shared drives, online access to software tools and data, etc.).Attendance is limited to the first 50 approved registrants (you must be a current OpenTox Association member to attend or apply for a membership or bursary award).