Celebrating the 125th year of Albert Einstein's birth a series of public lectures was held in his home town of Ulm, Germany. This book combines the outstanding lectures given by the most renowned physicists, science historians and Einstein researchers. It sheds light on fascinating facets of his life and his work, giving the background on how he conceived the relativity theory, his intriguing journey from Ulm to Princeton, the circumstances of receiving the Nobel Prize, his long-reaching impact on physics of the 21st century, and even his surveillance by the FBI. The book is likely to interest the broad audience interested in the life and work of one of the most outstanding public personalities of the 20th century.