Mass (standard hardcover)6 tenths kg
600 quadrillionVirus weights
50,000Housefly weights
1.7 tenthsNewborn babies
The world's least useful encyclopedia

Photo from Wikimedia Commons
The most printed book in history, 5 billion copies and counting/Literature & Writing
A standard print Bible contains 66 books (Protestant canon), roughly 783,137 words in English, and typically weighs about 600 grams for a standard hardcover edition. The text runs to about 1,200 pages at roughly 35 millimeters thick. In digital form, the complete text occupies approximately 4.4 megabytes. An estimated 5 billion copies have been printed since Gutenberg's first edition in 1455, making it by far the most widely distributed book in human history. If stacked, those 5 billion copies would reach to the Moon and back about 22 times.
About 4.4 MB
Protestant canon
Standard hardcover