Depending on who you ask, jealousy and envy are either exact synonyms, totally different words, or near-synonyms with some degree of semantic overlap and some differences. It is difficult to make the case, based on the evidence of usage that we have, for either of the first two possibilities. Both jealousy and envy are often used to indicate that a person is covetous of something that someone else has, but jealousy carries the particular sense of “zealous vigilance” and tends to be applied more exclusively to feelings of protectiveness regarding one’s own advantages or attachments. In the domain of romance, it is more commonly found than envy. If you were to say “your salt-shaker collection fills me with jealousy,” most people would take it to mean much the same thing as “your salt-shaker collection fills me with envy.” But if someone made a flirtatious comment to your partner, you would likely say that it caused you jealousy, not envy.

https://www.merriam-webster.com/dictionary/jealousy

We say “jealously guarded’ not ‘enviously guarded’ for a reason. Jealousy is about being protective of your own possessions and relationships; you feel jealousy if your spouse responds well to a coworker’s flirtations. Envy is when you find think of the coworker’s luck in having a good looking spouse

The first edition came out in 1991. The 4th ed came out in 2012, by which time Perl was no longer the duct tape of the internet. Perl 6 had muddied the waters, and Ruby and Rails had peaked.

Still, 1000 is painfully low, esp. for a high quality product.

The Camel book was already a huge bestseller, and was one of the anchor books of the early OReilly series. It made Larry a pretty penny

I had no idea how famous or influential she was. She first taught us how to make our own juggling balls: snip the ends of a balloon, fill with enough rice to feel comfortable in the hand, then wrap that with another balloon to seal the rice in, then snip the ends of the second balloon.

Then she went through the usual sequence: throw a ball, er, balloon, from one hand to the next, then practice with two and so on. By the end of that 2 hour session, we had got the essentials.

The remarkable thing about this workshop was that Judy was at an advanced stage of multiple sclerosis at that point. She was pretty much completely immobile from the neck down, and couldn't even see our hands properly from her wheelchair. She could only see the arc of the ball, but that was sufficient information for her to tell us how we could improve. "Pull your elbow in". "Focus on the left hand, the right will follow".

After the 2 hour workshop, she'd go to Golden Gate park to teach juggling. All for free. I feel extraordinarily privileged. She's been my polestar in life.