Bertrand Russell 
Russell on Ethics [PDF ebook] 
Selections from the Writings of Bertrand Russell

Russell on Ethics presents a coherent and comprehensive collection of Russell”s ethical writings, drawing on a wide range of his publications on ethical concerns, many of which have been difficult to access by students and general readers. Charles Pigden provides an accessible introduction to the papers, situating them within the field of ethics as a whole and detailed annotations on the papers themselves, analysing their arguments and exploring their relevance to current concerns.
Russell on Ethics represents a valuable insight into Russell as an ethicist, which will be useful to both specialist and non-specialist alike.