Since many former Arthur D. Little employees contributed to this book, we expect to find inconsistencies and some conflicting information that resulted from the passage of time. We welcome reader comments, correction of facts, as well as contributions to improve and expand the next revised edition that would be aimed at a broader readership. When pointing out inaccuracies or expanding on facts, please note the respective page in the book and state the source of your data (own experience, a written report or publication, heard from others, etc.).