In one line and close : permutations as linear orders : runs -- In one line and anywhere : permutations as linear orders : inversions -- In many circles : permutations as products of cycles -- In any way but this : pattern avoidance : the basics -- In this way, but nicely : pattern avoidance : followup -- Mean and insensitive : random permutations -- Permutations vs. everything else : algebraic combinatorics of permutations -- Get them all : algorithms and permutations.