Books
The hotel shop only had two decent books, and I’d written both of them.
— Douglas Adams · The Salmon of Doubt
Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The complaint about a hotel's book selection turns into a boast: the only two decent books, in the speaker's judgment, are his own. Its humour comes from presenting that sweeping self-praise as an unfortunate limitation of the shop.
Context reviewed