Hi all,
I am a historian and I have very little experience with Excel. I am assuming this is a silly question, but I would like to have three sets of variables in my data. I.e. I want to look at which textbooks were read at different schools over a 20 year period of time. So I have around 70 textbooks, 23 institutions, and the textbooks used at each institution each year. So I would like to produce a graph or table that lets me show which textbooks were more popular at which points in time, and in which institutions. I would greatly appreciate any help!
Best wishes,
Zahra
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