In 2010, the FDA approved Botox as a treatment for chronic migraine. Get more information about how and why it can help with this migraine subtype. In 2010, the FDA approved Botox as a treatment for chronic migraine.
In modern lithography, the image is made of a polymer coating applied to a flexible aluminum plate. The image can be printed directly from the plate (the orientation of the image is reversed), or it can be offset, by transferring the image onto a flexible sheet (rubber) for printing and publication.
The first step in creating a print using stone lithography is to prepare the stone for the artist. Toby selects a flat limestone block of the appropriate size. If the image will contain multiple colors, multiple blocks are used, one for each color. The best stones come from the quarry in Solenhofen, a town in Bavaria (see Printmaking dictionary: Lithography for details). Stones are reused, so the first step is to grind the stone to remove the previous image and then polish the stone to prepare it for the artist.