The first artist covered in this book is Louis Wain, a schizophrenic artist who loved to draw cats.

The second artist is Bryan Charnley, a schizophrenic artist who looked toward his inner-self for inspiration.

The third artist is August Natterer, a German outsider artist, who suffered from schizophrenia.

The fourth artist mentioned is  William Utermohlen, a artist who's Self Portrait series is mentioned in this book. William continued to make Self Portraits while he was diagnosed with Alzheimer's. 

Open to suggestions, but here are some next possible artists to be mentioned in this book:

Vincent van Gogh- Suffered from Depression and possibly Bi-Polar disorder. Famous for his painting, The Starry Night

Adolf Wölfli- Swiss artist who suffered from psychosis and abuse in his early childhood years.

Heinrich Anton Müller- Another Swiss artist who suffered from a mental illness (Schizophrenia) and psychotic break downs.

Edvard Munch- Artist with Bi-polar disorder, most famous for creating the painting, The Scream.

 Georgia O'Keeffe- Successful female artist who suffered from depression and nervous breakdowns.

Francisco Goya- Extremely successful Spanish artist who suffered from Hallucinations, Delirium, and depression. Leading from joyful paintings to darker-themed paintings.

Richard Dadd- Victorian era artist whos paintings mainly focused on pixies and fairies. Paintings were known to be rendered with obsessively minuscule detail.