I rarely revisit a book for facts alone. I revisit it for the language it gives me.
The right sentence can clean up a whole design problem. A useful metaphor can reveal where a workflow is too vague. A well-shaped argument can make an architecture choice feel obvious after weeks of confusion.
That is why this part of the shelf is about reusable language as much as reading taste. Naming is part of design, and books are one of the best places to keep refining that instinct.