A luthier (pron.: // LOO-ti-ər) is someone who makes or repairs lutes and other string instruments. In the United States, the term is used interchangeably with any term that refers to a specific, or specialty type of stringed instrument, such as violin maker, guitar maker, lute maker, etc. The word luthier comes from the French word luth, which means lute. The craft of making string instruments, or lutherie, is commonly divided into two main categories: makers of stringed instruments that are plucked or strummed and makers of stringed instruments that are bowed. Since bowed instruments require a bow, the second category includes a subtype known as a bow maker or archetier.
Plucked strings 
and in our time:
Two important luthiers of the early 19th century connected with the development of the modern classical guitar are Louis Panormo and Georg Staufer. Antonio Torres Jurado is credited with developing the form of classical guitar that is still in use today. Christian Frederick Martin of Germany developed a form that evolved into the modern steel-string acoustic guitar.
The American luthier Orville Gibson specialized in mandolins, and is credited with creating the archtop guitar. The important 20th Century American luthiers John D'Angelico and Jimmy D'Aquisto made archtop guitars. Lloyd Loar worked briefly for the Gibson Guitar Corporation making mandolins and guitars. His designs for a family of arch top instruments (mandolin, mandola, guitar, et cetera) are held in high esteem by today's luthiers, who seek to reproduce their sound. Paul Bigsby's innovation of the tremolo arm for archtop and electric guitars is still in use today and may have influenced Leo Fender's design for the Stratocaster solid body electric guitar, as well as the Jaguar and Jazzmaster. Concurrent with Fender's work, guitarist Les Paul independently developed a solid body electric guitar. These were the first fretted solid body electric guitars—though they were preceded by the cast aluminum "frying pan," a solid body electric lap steel guitar developed and eventually patented by George Beauchamp, and built by Adolph Rickenbacher. A company founded by luthier Friedrich Gretsch and continued by his son and grandson, Fred and Fred Jr., originally made banjos, but is more famous today for its electric guitars. Vintage guitars are often sought by collectors.
Bowed strings 
Bowed instruments include: cello, crwth, double bass, erhu, fiddle, hudok, mouthbow, nyckelharpa, hurdy gurdy, rabab, rebec, sarangi, viol, viola, viola da braccio, viola d'amore, viola da gamba and violin.
The purported "inventor" of the violin is Andrea Amati. Amati was originally a lute maker but turned to the new instrument form of violin in the mid 16th century. He was the progenitor of the famous Amati family of luthiers active in Cremona, Italy until the 18th century. Andrea Amati had two sons. His eldest was Antonio Amati (c.1537,1540–1607), and the younger, Girolamo Amati (c.1561-1630). Girolamo is better known as Hieronymus, and together with his brother produced many violins with labels inside the instrument reading "A&H." Antonio died having no known offspring, however Hieronymus became a father. His son Nicolò (1596–1684), was himself an important master luthier who had several apprentices of note including Antonio Stradivari (probably), Andrea Guarneri, Bartolomeo Cristofori, Bartolomeo Pasta, Jacob Railich, Giovanni Battista Rogeri, Matthias Klotz and possibly Jacob Stainer.
Gasparo da Salò of Brescia (Italy) was another important early luthier of the violin family. About 80 of his instruments survive, and around a hundred documents that relate to his work. He was also a double bass player—and son and nephew of two violin players: Francesco and Agosti.
Gasparo Duiffopruggar of Füssen, Germany, was once incorrectly credited as the inventor of the violin. He was likely an important maker, but no documentation survives, and no instruments survive that experts unequivocally know are his.
Da Salò made many instruments and exported to France and Spain, and probably to England. He had at least five apprentices: his son Francesco, a helper named Battista, Alexander of Marsiglia, Giacomo Lafranchini and—the most important—Giovanni Paolo Maggini. Maggini inherited da Salò's business in Brescia. Valentino Siani worked with Maggini. In 1620 Maggini moved to Florence.
Luthiers born in the mid 17th century include Giovanni Grancino, Carlo Giuseppe Testore and his sons Carlo Antonio Testore and Paolo Antonio Testore, all from Milan. From Venice the luthiers Matteo Goffriller, Domenico Montagnana, Sanctus Seraphin and Carlo Annibale Tononi were principals in the Venetian school of violin making (although the latter began his career in Bologna). The Bergonzi family of luthiers were the successors to the Amati family in Cremona. David Tecchler who was born in Austria later worked in both Venice and Rome.
Important luthiers from the early 18th century include Nicolò Gagliano of Naples, Italy, Carlo Ferdinando Landolfi of Milan and Giovanni Battista Guadagnini who roamed throughout Italy during his lifetime. From Austria originally, Leopold Widhalm later established himself in Nürnberg, Germany.
The early 19th century luthiers of the Mirecourt school of violin making in France were the Vuillaume family, Charles Jean Baptiste Collin-Mezin, and Collin-Mezin's son, Charles Collin-Mezin, Jr.. Nicola Utili (also known as Nicola da Castel Bolognese) (Ravenna,Italy. March 1888 - May 1962) beside traditional lute works experimented the making of "pear shaped" violins.
The Jérôme-Thibouville-Lamy firm started making wind instruments around 1730 at La Couture-Boussey, then moved to Mirecourt around 1760 and started making violins, guitars, mandolins, and musical accessories.
See also 
- Oxford Dictionaries
- Open Directory Project. "Arts, Music, Instruments, Stringed". Retrieved 2006-11-03.
- The Guitar (From The Renaissance To The Present Day) by Harvey Turnbull (Third Impression 1978) - Publisher: Batsford. p68 (Ponormo) and p70 (Georg Staufer) - Chapter 4 (The Development Of The Instrument)
- Gruhn, George. "Rickenbacker Electro Spanish Guitar". Retrieved 2006-11-04.
- Hill, W. Henry Hill, Arthur F. Hill and Alfred E. (1963). Antonio Stradivari : his life and work, 1664-1737 (New Dover ed. ed.). New York: Dover. p. 27. ISBN 0-486-20425-1.
- Pio, Stefano (2004). Violin and Lute makers of Venice 1640 -1760. venezia, Italy: Venice research. p. 383. ISBN 978-88-907252-2-7.
- Bartruff, William. "The History of the Violin". Retrieved 2006-11-03.
Other sources 
- Historical Lute Construction by Robert Lundberg, Guild of American Luthiers (2002) ISBN 0-9626447-4-9
- The Complete Luthier's Library. A Useful International Critical Bibliography for the Maker and the Connoisseur of Stringed and Plucked Instruments. Bologna, Florenus Edizioni 1990. ISBN 88-85250-01-7
- Guild of American Luthiers
- Guitar Museum Classical Guitar Museum, (UK)
- Guild of Argentine Instrument Makers
- Luthier Interviews Guitarbench.com archive of Luthier Interviews.
- The Consortium of Violinmakers "Antonio Stradivari" CREMONA
- Luthiers Forum A large online lutherie community. Educational.
- LuthierBuilt.net Connecting musicians with independent musical instrument artisans.