Wound:  the bead is formed by the ancient technique of winding molten glass around a metal wire.  The beads are then sliced and polished.

 Lampwork:  a wound glass bead is formed by winding molten glass around copper wire heated over a lamp

Mosaic:  mosaic beads are very ornate, and are composed entirely of colorful fused segments of glass cane.  Glass cane is a long drawn rod of glass.

Millefiori:  these beads have layers of colorful glass fused in cross section and melted onto the surface of a bead.  The resulting surface can look like flowers, like faces, like an abstract pattern, or even a realistic scene.  One example of a glass cross section:  two layers of different-color glass, rolled up like a jelly roll, and then sliced.

Swarovski Crystal:  these are leaded (crystal) glass beads with a very high brilliance.  These are named for Daniel Swarovski who was born in Bohemia in 1862, and who invented a machine to cut glass.

Chevron:  a very popular bead, first made in the 1400's in Venice.  This bead is formed by drawn-out layered glass block sectioned into beads; their ends are cut or ground down to create a zigzag pattern, usually blue with white and red stripes.

Blown:  blown glass beads are formed as a craftsman blows into a glass tube that has a small piece of molten glass on the end.  The tube is turned over heat until the bead reaches the desired size.