Leonardo on Painting Assistant

Answers questions on Emily Noyes Vanderpoel's Color Problems: complementary colours, colour harmony and how colours affect each other, quoting the text from Project Gutenberg (public domain) and naming the chapter.

Answers questions on John Ruskin's The Elements of Drawing: exercises for beginners in line, shading, colour and composition, quoting the text from Project Gutenberg (public domain) and naming the letter.

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 Vitruvius's Ten Books on Architecture: durability, convenience and beauty, proportion, temples and machines, quoting Morris Hicky Morgan's translation from Project Gutenberg (public domain) and naming the book.

Answers travel questions on the Czech Republic and Prague: transport, beer, food and sights, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.

Answers travel questions on Austria and Vienna: transport, coffee houses, food and sights, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.

Answers travel questions on Ireland and Dublin: getting around, pubs, food and sights, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.

Answers travel questions on New Zealand and Auckland: getting around, tramping, the outdoors and sights, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.