If you have checked every element on the checklist, then there are probably
too many. An 8.5‑inch by 11‑inch layout will start to look cluttered by
the time a fifth or sixth element is placed upon it. A poster‑sized layout
could possibly support the inclusion of all the layout elements if enough
time is spent on their arrangement. (Time is generally what separates
a good map from a poor map, not experience.) Elements like logos and
text are often present on maps, but this does not mean you have to use
them yourself. If they generate clutter and have no functional value,
then you can safely and assuredly get rid of them.