J

Jeffrey Thomas - Americana, literature, fine printing, travel, illustrated books, and good books on all subjects.
http://www.jeffreythomas.com/

James S. Jaffe Rare Books - Specializing in rare books, literary first editions, private press books, illustrated books and poetry.
http://www.literaryfirsts.com/

Julian's Books - Specializing in rare and hard to find out of print books; first editions, signed/autographed books, limited editions, leatherbound books and sets.
http://www.juliansbooks.com/

John Drury Rare Books - Specializing in books dating from 1600 to 1900 with an emphasis in the humanities. Includes economics, education, law, philosophy and social history.
http://www.johndruryrarebooks.com

Joslin Hall Rare Books - Curious, Unusual and Interesting Books of the 16th-20th Centuries.
http://www.joslinhall.com/

JB Books - Offers searchable database of new, used, and collectible antiquarian books.
http://www.jbbooks.com/

Joseph J. Felcone - Rare books and New Jerseyana.
http://www.felcone.com/

James H. Freiberg, Books - Large selection of out of print, used, rare and antiquarian books in stock covering many fields and interests. Fiction, Non Fiction, History, Children's, and Cooking.
http://www.freibergbooks.com/

John Dinsmore and Associates - Used and rare books; including first editions.
http://members.autobahn.mb.ca/~parker/jda/

John Townsend - Second-hand books for sale on family history, British topography, antiquarian heraldry books, plus free specialist out-of-print book search.
http://www.johntownsend.demon.co.uk/

James and Devon Gray Booksellers - Antiquarian bookdealer specializing in books printed before 1700.
http://www.graybooksellers.com/

Jarndyce Nineteenth Century Booksellers - 18th and 19th Century English Literature, Social, Economic and Political History, Dickens first editions and Dickensiana. Based in London UK.
http://www.jarndyce.co.uk/

Janey's Used Romance Book Sale - Historical, contemporary, series, and paranormal romances. Prices are in UK pounds and U.S. dollars.
http://dspace.dial.pipex.com/town/park/ed54/

John Gach Books - Used books in Neuroscience, Philosophy, Psychiatry, Psychoanalysis, Psychology and Social Thought.
http://www.gach.com/

Jonathan Sheppard Books - Genealogical and antiquarian resource for out-of-print books and map reprints.
http://www.jonathansheppardbooks.com/