Among all the books in the world, the one that offers the best explanation of death and method to face death is Bardo Tödröl. The book has since received recognition from scholars in the West. Having obtained the relevant empowerment, one can proceed to study the text, but not before then, as the proper order for learning the Secret Mantra still needs to be observed. Nonetheless, a part of the section on the method of facing death does not require prior empowerment so that it is available for everyone to read or learn more seriously.
~Depicted from THE HANDBOOK'S FOR LIFE JOURNEY - On Death And Rebirth-Understanding Death