THE following simple method of making lantern slides of line drawings may be of interest. Where the diagrams are not already available in printed form, they are drawn in white chalk on a blackboard ...

Google Slides is a cloud-powered alternative to PowerPoint, a slideshow tool that allows you to put together a presentation at high speed, share it with others, and get feedback with collaboration ...

Their capabilities—and those of the more advanced Line app, which includes aids to help you achieve accurate, vanishing-point perspective in your drawings—are often wasted on me as I draw happy little ...