English: Presentation “ Email campaigning for onboarding new volunteers".
<a href="//commons.wikimedia.org/wiki/User:Merle_von_Wittich_(WMDE)" title="User:Merle von Wittich (WMDE)">Merle von Wittich (WMDE)</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>