What is the rule for commas in a series?

Related questions

1. Is there a comma before or?
2. Does MLA use the Oxford comma?
3. Does the comma go before or after so?
4. Do you put a comma before and in a sentence?
5. How do you punctuate a list of items?
6. Can you use a semicolon in a list?
7. Do you use a comma to separate items in a series?
8. Are serial commas necessary?
9. Do you use an Oxford comma with or?
10. Is there an Oxford comma in Spanish?

Tags

1. #items
2. #comma
3. #series
4. #daughter
5. #before
6. #groups
7. #words
8. #husband
9. #after
10. #estate
11. #separate
12. #three
13. #commas
14. #known
15. #example
16. #simple
17. #nephew
18. #oxford
19. #comes
20. #above