Perseverance"" and ""resolution"" are the names of the two stone lions in front of the New York public library. In the hardest days of the Great Depression of the United Stats, Laguardia, mayor of New York City, has encouraged the citizens through all the nights with these two words on the radio broadcast every Sunday night and to welcome for the arrival of tomorrows dawn. In this book, numerous bibliophile, booksellers and library people have made immortal contributions in the preservation on the cultural heritage with these two words.