Jonny and Neve, both fifteen, bond after her twin brother, in whose shadow she has been living, becomes Jonny's just-in-time heart donor.

The adventures of a nine-year-old twin brother and sister who, despite constant bickering and fighting, support each other loyally in learning to read and spell, memorizing the multiplication tables, confronting the school bully, and making friends.

When high school junior Jana takes over from her twin brother as campaign manager for an unlikely candidate for school president, she discovers more in him than his intelligence and Mormon faith, and more in herself than a craving for popularity.

"Identical twins Ling and Ting like to be silly, tell jokes, and laugh together"--

In a world that is rapidly descending into chaos, Frey and Rafi are twin sisters, but few people know of Frey's existence, because she has been raised to be her sister's body double and lethal bodyguard, while Rafi has been raised to further the family's political power--but when their father sends Frey in her sister's place as collateral in a tricky deal, Col, the son of a rival leader, gets close enough to begin to suspect something, and Frey must...

In 1837, as seventeen-year-old twins, Persephone and Penelope, are starting their first London Season they find that their beloved governess, who has taught them everything they know about magic, has disappeared.

Eighth-grade twins Olivia and Ivy and their friends try to prevent a nosy television reporter, Serena Star, from uncovering the secret community of vampires in Franklin Grove.

Jonah was able to save all of time from collapsing but in doing so gained a twin brother, Jordan, who must learn what has happened and do his own part to save time--and his parents.

When a new girl in the Barkers' class, Carole Anne, acts like a bully, the students try talking to her and ignoring her until Morgie finally discovers what is wrong and finds a way to fix it.