Development (1) Propagation (1) History (1) Parts (1) Grading (1) Assaying (1) Parts (1) Encyclopedias (1) Yarn (1) Wood-engraving (1) Thread (1) Science (1) Printing industry (1) Printing (1) Note-taking (1) Marginalia (1) Intertropical convergence zone (1) International division of labor (1) Impact (1) Expression (1) Example (1) Documents, Printing of (1) Discussion (1) Dilemma (1) Culture (1) Communities (1) Civilization, Modern (1) Block books (1) Authors (1) Knowledge and learning (1)