The work of Escher has captured the imagination of many people and in this book Bruno Ernst (a personal friend of Escher) expands our understanding of the artist. After a brief but concise biography, the author throughly analyses the most important facets of Escher's artistic output: the illusion in drawing, the use of perspective, the creation of impossible realities, simultaneous and contrasting realities, crystals, and the infinite. Escher was an artist who was unique in in his work, he stands by himself, and this book is a helping tool in understanding and appreciating the unparalleled magic of his work.