Optimism Helen Keller

Dover

The World I Live in and Optimism: A Collection of Essays

Literary Licensing, LLC

The Story of My Life and Optimism                

Independently published

Helen Keller: A Life from Beginning to End      

Leopold Classic Library

My Key of Life: Optimism                        

Optimism by Helen Keller (2011-03-01)            

Start Publishing LLC

Optimism (English Edition)                      

Cornell University Library

Optimism: An Essay [1903 ]                      

CreateSpace Independent Publishing Platform

The Inspiring Tale of Helen Keller