Facebook hasn't publicly disclosed how many responses it accumulated from the Like button and its other related options, but Levchin told the book's authors that he believes the company probably ...

A new book, "Like: The Button That Changed The World," delves into the convoluted story behind the Like button.

He wrote his first book about collecting buttons, appropriately titled “The Button Book” in 1972. Since then, he has become the authority on buttons of all kinds, not just political ones. And his ...

"' The Button Book' had both political buttons and what we call broadly nonpolitical buttons, which could be a button for a World's fair, sports, World War Two, anything that isn't political we ...

A new book, "Like: The Button That Changed The World," delves into the convoluted story behind the Like button.