Schenveningen for dummies: (self included)

Scheveningen 101:

White's ideas include pawn breaks  to e5,  f5 (and fight for d5 by removing pawn) and g5.

Black may try:  P - b4 as part of an attack on white's e pawn, d5, or e5 for a blockade.  Black has good chances on the queenside using his open bishop file.

White often advances his f pawn.  This weakens his e pawn and opens a diagonal along f2 - b6 with attack chncs for black.

Hats off to Andrew Soltis, Pawn Structure Chess, who I summarize in detail.