That’s from clickup. They have gantt charts but we aren’t good enough at date management to use them effectively.
Personally, I don’t really believe in Gantt charts anyway. A lot of wasted time guessing at something that’s wrong in the end. A better use of time is to work on the next thing in your Queue as efficiently as possible, finish it, then start the next thing.
and this book does a great job teaching scrum, but also just basic ideas about how to get stuff done.