This article presents the development of a children's book about sustainability and other environmental issues. Inspired by the classic story of Don Quixote de la Mancha, it was created a quasi-homonymous character, Dom Lixote, who advocates the reuse of materials and other ecological causes, no more fighting windmills, but the villains that plague the contemporary world, like the improper disposal of waste, the privatization of drinking water sources, the excessive use of packaging and the depletion of natural resources. The graphic design of the book also enfolds these causes and seeks to contribute both under the literary aspect, disseminating this idea, and the design and sustainability, using reused paper for the printing of the copies. The result is twice as satisfactory, since it is a book that deals with reuse of materials and has its graphic design guided by the same guideline, which gives coherence and consistency to the project. In addition, the project seeks to contribute to the development of an aesthetic and formal culture that takes into account and values the peculiarities of projects with a focus on sustainability.