"Sun & Pinecones," Miniature Letterpress Print by Yoshiko Yamamoto. This miniature print is framed as shown with an acid-free solid-core mat, foam core backing, acrylic glazing, and a wood frame. 
Yoshiko Yamamoto is a premier block printer who has merged the aesthetic of Japan's Edo period with the style of post-industrial England's Arts and Crafts Movement. Yamamoto's block prints are letterpress printed using hand-cut blocks on acid-free paper.
Letterpress printing is a relief print process. The printed image is produced by a raised surface (originally lead movable type) being inked and then impressed onto a sheet of paper. These raised surfaces have historically been anything from woodcuts to wood engravings, from linocuts to typefaces. Over the past several years, a new type of plate made from photopolymer has contributed to the revival of letterpress printing. Yoshiko Yamamoto uses all of these methods, from wood and linoleum block to photopolymer plates.