This book was written by the author of the network system, which describes the retina very deeply, starting with the essentials and testing systematically in details of specific low levels as necessary. No previous experience is required with the lattice to read the book, although the basic concept with R.

The book contains nearly 150 characters produced with a poetic network. Many examples confirm the principles of good graphic design.

Almost all of them use real data sets available to the public in various R packages. All codes and numbers in the book are also available online, along with supplementary material covering more advanced topics..