There may be times when you want to convert a list to string....this is often done just to show the output of some activity, or is often needed when transferring data from one system to another (Firebase / html / javascript) when other methods don't get you there. Here is a method to save having to input the list to a label or textbox then get the output from the label or textbox. Just use the join block. Click on the mutator on the join block and remove the second "string". Connect your list block. Job done.