And when life’s prospects…

I came across the poem “The Sprig of Moss” by the legendary William Topaz McGonagall, and that eternal truth:

And when life’s prospects may at times appear dreary to ye, / Remember Alois Senefelder, the discoverer of Lithography.

Which provides me with an opportunity to remind myself of the three main printing techniques: relief, as in Gutenberg, as in pressing a positive surface onto paper; intaglio, as in pressing paper onto a negative surface; and planographic, as in working with a smooth surface covered in oil.


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