White line woodblock printing is a print method which does not require a printing press or toxic inks. The prints are cut on a single woodblock. The colors, applied with a brush, are watercolors and a spoon is used to transfer the image onto the paper. This is a unique way to create original images of many colors.

The creation of the method has been created to B. J. O. Nordfelt, in Provincetown, during the winter of 1915 - 1916, though now there is significant evidence that Edith Lake Wilkinson was making the white-line woodblock prints as early as 1914.

Wanting to simplify the process of the traditional Japanese method of woodblock printing, which required a new block for each color, he came up with the method of using one block for the entire print, all of the colors on one block.