Line and Form Assistant

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.

Answers questions on Descartes's Discourse on the Method: methodical doubt, his four rules and 'I think, therefore I am', quoting John Veitch's translation from Project Gutenberg (public domain) and naming the part.

Answers questions on writing clearly for your audience from the U.S. Federal Plain Language Guidelines, citing the GitHub repo GSA/plainlanguage.gov (US government work, public domain). Not an official U.S. government product.

Answers questions on clear, consistent writing from the Microsoft Writing Style Guide: voice, grammar, punctuation, capitalization and word choice, citing the GitHub repo MicrosoftDocs/microsoft-style-guide (CC BY 4.0). Not official.

Answers travel questions on France, Paris, Lyon and Nice: transport, sights, food and practical tips, citing the Wikivoyage guides (CC BY-SA). Check current details before you travel.