The Toolbox for Multilingual Families is aimed at parents who are raising their children with more than one language, and are looking for activities to foster their children’s understanding, speaking, reading and writing skills in all their languages, no matter if they acquired them from birth or added them later on. The authors have selected 123 activities and games for 0-15+ year-olds – and adults! – that can easily be adapted to different languages, to all levels of fluency, and are suitable for two or more people. The descriptions are short and easy to follow. The activities and games in this Toolbox don't involve electronic devices and only those in the reading and writing section require a minimum of tools (paper, pen, glue etc.). The activities and games can also be helpful to transform "face time" with grandparents, extended family and friends into enjoyable and memorable experiences with "effective language learning" as a side effect.