Explains what codes are, details some of the famous codes in history--including the Morse, Window and Invisible Ink Codes--and shows how children can invent their own codes
This book is specially designed in Amazon's fixed-layout KF8 format with region magnification. Double-tap on an area of text to zoom and read. Ten Little Indians is a counting book based on the classic rhyme by the same name. The EPUB version includes a highlighted audio of every word in the book.