Theory of the Leisure Class Assistant

Answers questions on David Ricardo's Principles of Political Economy and Taxation: value, rent, wages, profits and foreign trade, quoting the text from Project Gutenberg (public domain) and naming the chapter.

Answers questions on W. E. B. Du Bois's The Souls of Black Folk: double consciousness, education and the color line, quoting the text from Project Gutenberg (public domain) and naming the chapter.

Answers questions on Sun Tzu's The Art of War, quoting Lionel Giles's 1910 translation from Project Gutenberg (public domain) and naming the chapter.

Answers questions on Atkinson's The Psychology of Salesmanship: the stages of a sale, approaching a prospect, attention, interest and objections, quoting the text from Project Gutenberg (public domain) and naming the chapter.

Answers questions on Goethe's Theory of Colours: physiological colours, coloured shadows and the effects of colour on the mind, quoting Charles Eastlake's translation from Project Gutenberg (public domain) and naming the paragraph.

Answers questions on Arthur Wesley Dow's Composition: line, notan (dark and light) and colour as the structure of art, with exercises, quoting the text from Project Gutenberg (public domain) and naming the section.

Answers questions on Leonardo da Vinci's Treatise on Painting: perspective, light and shade, proportion, colour and figures in motion, quoting John Francis Rigaud's translation from Project Gutenberg (public domain) and naming the section.

Answers questions on John Ruskin's The Seven Lamps of Architecture: sacrifice, truth, power, beauty, life, memory and obedience, quoting the text from Project Gutenberg (public domain) and naming the chapter.