Likely booklouse (barklouse)

Humid indoor areas, stored foods, books, and damp wood or bark.

Mold, fungi, and microscopic organic debris; some species feed on stored-food residues.

Small, pale, soft-bodied insects that thrive in humidity and reproduce quickly; generally crawl rather than fly.

Harmless to people and pets and do not bite; large numbers can contaminate stored foods or indicate excess moisture and mold.