When presenting data under the form of a table, an error can be to omit mentioning the unit of measure, leading to possible misinterpretation.
What are some other possible mistakes to avoid?
Additionally, what are some things to do to improve a table? (while not doing these things won't necessarily generate misinterpretation or other problems).
I'm interested in particular in the case of tables in print or online publications, which may have their specific pitfalls.
I'm also interested in references on the subject, particularly if they rely on usability testing or real-life observations relative to the impact on readers. (But I'd be grateful for answers without references too!).
N.B.: This is not a homework question, I'm interested in identifying possible mistakes I make when presenting tables, and possible sources of improvement. Thanks,