I call our book the Coolest Book in The Whole Library, not because it so, but to make its nature clearer to you, my happy readers, who are privileged to live in such an era when reading such cool material is possible.
Imagine a vast array of books, with spines displayed in the usual manner in which libraries carry out the task of book storage and retrieval. Imagine upon the shelves many cool books, with material of a varying levels of coolness.
Now imagine amongst these cool books, the coolest book. Imagine that this book, for which there is no cooler book, this coolest book is the one which you, the reader, now hold in your hands.
Now that you, the reader, find yourself in possession of the Coolest Book in the Whole Library, you find yourself with options for how to proceed: Some may choose to read the Coolest Book in the Whole Library. Others may choose to contribute to the Coolest Book in the Library.