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The Dewey Decimal System of Love

Little fluffy romance about a librarian in love with a married man, his weird wife, and some symphony works. The librarian in question is 40, unmarried and for all intents and purposes a virgin, though she is not actually a virgin. She is often dressed sensibly by her brand-conscious mother [I sort of skimmed the paragraphs outlining what she wore] and likes her job and likes her life. While not a super-positive role model in the world of men, she as a character has a lot to like about her as a librarian and a professional. A quick book but not at all unpleasant.