Data scientists give many, many talks. Sharing work internally with other data scientists, internally with project stakeholders, externally at meetups, or externally at conferences. So many talks.
In my experience, many talks by data scientists are…not great. It is hard to talk about your work! And data science as a subject matter is hard to communicate about, period. This is the single best article I’ve ever read on how to prepare for a talk. Read it. Steal ideas from it. Make your next talk awesome.