I'm applying for CS tenure track positions this year, and was advised to add a "Selected Publications" part to my CV (out of 20+ conference and journal papers). How long should this section be? Can I pick all my top-tier publications (seven) or do I need to select among them?
I would certainly include them all (the seven). Even more than the seven top tier ones. If you were an old hand in academia with hundreds, then you select. A young starter-upper should include a much larger fraction of the published work.
Don't neglect that in CS, conferences are usually primary.
But seven seems too few if you have more than 20.