The book, written by the American scientist and theologian Stafford Betty, is devoted to the most important topic that concerns every person living on this planet - what awaits us beyond the boundaries of earthly existence. It analyzes the main sources of the most reliable and evidentiary posthumous communications received through mediumship at different times and by different people. Despite the inevitable differences in minor details caused by the personalities of the communicators themselves, it is clearly shown that there are no significant contradictions in the main content of the given descriptions.