Easy Lessons on Reasoning: Richard Whately
Easy Lessons in Language: Stephen W. Clark
Easy Lessons in Einstein:a Discussion of the More Intelligible Features of the Theory of Relativity / With an Article by Albert Einstein and a Bibliography Edwin Emery Slosson
You Can Paint Dazzling Watercolors is a visually rich guide that will help beginner and experienced painters master the stunning, but often complex techniques for creating beautiful, dazzling backgrounds and art in the ever-popular medium, in just twelve easy lessons.
Easy star lessons: Richard Anthony Proctor
10 Easy Lessons in Cosmic Habitforce: Napoleion Hill