O'Reilly books were once a major part of my adult life. When I worked on a daily basis in Lower Manhattan, I bought nearly every O'Reilly book about UNIX tools

O'Reilly books were once a major part of my adult life. When I worked on a daily basis in Lower Manhattan, I bought nearly every O'Reilly book about UNIX tools and languages. Most often, I bought two copies: one for my desk at work and one for my home office. The first purchases I made at the very beginning of Amazon.com were O'Reilly books, two copies at a time. Initially this was because the Borders Bookstore at 100 Broadway didn't have the book I needed yet, or didn't have two copies. I still have a few of the Amazon.com invoices in a storage box, somewhere in my utility room.