Color problems; a practical manual for the lay student of color
Color problems is a 1903 practical manual by Emily Noyes Vanderpoel, published in New York by Longmans, Green, written for lay students learning color. Its pictures are grids of small squares in black, red, brown, gold and gray-blue, set out as exercises in how colors sit beside and against one another. A designer could take from them a method for testing palettes by arranging swatches in tidy grids and checking how each tone shifts its neighbours.
