Mind-Graph is a graphic language to solve problems (math problems, programming problems, student problems...). Mind-Graph-Ebook explains in depth the characteristic and possibilities of this graphic language. It's a powerful technique for note taking, brainstorming, memorization, problem solving… It takes the best things of three worlds: mind maps (visual clarity) , concept maps and conceptual graphs (semantic meaning). Mind-Graph-Ebook has got methods of searching of information and zoom effects. I use this method to solve my own problems (computer science problems).