Philip S. Corbet, Dragonflies: Behavior and Ecology of Odonata (1999), a definitive and well-illustrated source of information covering both dragonflies and damselflies.
Ross E. Hutchins, The World of Dragonflies and Damselflies (1969), in addition to basic biological information, includes discussion of fossil ancestors and suggestions for collecting, identifying, and studying odonates.
Minter J. Westfall, Jr., and Michael L. May, Damselflies of North America (1996).
Rod Preston-Mafham and Ken Preston-Mafham, The Encyclopedia of Land Invertebrate Behaviour (1993), pp. 35–42, includes a detailed discussion of odonate reproductive behaviour, in addition to other topics briefly touched upon.
The Dragon & the Damsel (1983), written and produced by Pelham Aldrich-Blake. Narrated by Sir David Attenborough as part of the BBC natural history series “Wildlife on One.”
Dragonfly (1988), produced by NHK Japan and TVOntario as part of the “Nature Watch” series.