Dragonflies and Damselflies Home Page (lots of good stuff for North America)
Societas Internationalis Odonatologica
Specialist Group for Systematic and Phylogenetic Odonatology
    electronic journal PETALURA, odonate bibliography
British Dragonfly Society
    members include dedicated amateurs and professionals from all over the world
    publishes a regular journal
Worldwide Dragonfly Association (WDA)
Damselflies of North America Minter J. Westfall and Mike L. May, Scientific Publishers Inc. 1996
Dragonflies of North America
James G Needham, Minter J. Westfall Jr., and Michael L. May, Scientific Publishers 2000
    revises, updates and considerable expands the earlier edition
Dragonflies of North America
James G. Needham and Minter J.Westfall, University of California Press 1954
The Odonata of Canada and Alaska in 3 volumes from University of Toronto Press (reprinted 1998)
Vol 1 Zygoptera E.M.Walker 1953
Vol 2 Anisoptera E.M.Walker 1958
Vol 3 Anisoptera (superfamily Libelluloidea) E.M.Walker and P.S. Corbet 1978
Audubon Society Field Guide to North American Insects and Spiders
    This is a good general field guide.
    There are 36 odonate pictures (some illustrative, some not so) of 34 species.
    The male Green Darner is shown twice, once with the full adult coloration.
    The Red Skimmer is shown twice, one appears to have just emerged.
    The Brown Darner appears to have been pinned to the branch.
    Does anyone know how they picked out their common names?
Dragonflies through Binoculars
Sidney Dunkle Oxford University Press 2000
    dragonflies only (i.e. no damselflies)
    photographs, range maps and species information
While these guides were specifically written for certain political boundaries, few species are endemic to a single state or province. If you live nearby, and even if you don't, you may find the information contained in these various guides useful in your area. There are undoubtedly regional guides that I am not aware of do this list is probably incomplete.
British Columbia - The Dragonflies of British Columbia
Robert A. Cannings and Kathleen M. Stuart 1977
    this booklet was published by the B.C. Provincial Museum
    lots of drawings, location maps, 254 pages
    out of print
California - Common Dragonflies of California by Kathy Biggs 2000
    pocket sized guide
    uses photographs - males and females are shown
    includes a number of damselflies
California - Dragonflies and Damselflies of California by Tim Manolis 2003
    color drawings of the species currently known to be present in California
    range maps and notes on behavior
Florida - Dragonflies of the Florida Peninsula, Bermuda, and the Bahamas (c 1989)
Damselflies of the Florida Peninsula, Bermuda, and the Bahamas (c 1990)
both by Sidney Dunkle
Kansas - Checklist of Kansas Damselflies by Roy Beckemeyer and Donald Huggins Mar 1998
    Checklist of Kansas Dragonflies by Roy Beckemeyer and Donald Huggins Feb 1997
    these pamphlets are part of the Kansas School Naturalist series from Emporia State University
    not all species are shown (photographs are used for those that are)
Washington - Dragonflies of Washington by Dennis Paulson 1999
    this booklet is a publication of the Seattle Audubon Society
    the state's damselflies are included
Wisconsin - Guide to the Common Dragonflies of Wisconsin by Karl and Dorothy Legler and Dave Westover
    includes 3 damselflies
The Dragonflies of Great Britain and Ireland Cyril O. Hammond, revised by Robert Merritt, Harley Books, 1983
    excellent color drawings, details of nymphs, distribution maps in 10km squares
Numerous local publications for Great Britain including:
Unsere Libellen, Gerhard Jurzitza, Franckh'sche Verlagshandlung, 1978
    pretty good photos supplemented by text and drawings, 71 pages
A Field Guide to the Dragonflies of Britain, Europe and North Africa
J. d'Aguilar, J-L Dommanget and R. Prechac Collins 1986
Ron Lyons (volunteer 1990-1999)