Lines, Bars and Circles: How William Playfair Invented Graphs
Written by Helaine Becker with illustrations by Marie-Eve Tremblay

• Publication Date: April 4, 2017
• Genres: Biography, Children's 4-8, Children's Nonfiction, Education, Nonfiction, Science
• Hardcover: 36 pages
• Publisher: Kids Can Press
• ISBN-10: 1771385707
• ISBN-13: 9781771385701