A cool tool can be any book, gadget, software, video, map, hardware, material, or website that is tried and true. All reviews on this site are written by readers who have actually used the tool and others like it. Items can be either old or new as long as they are wonderful. We post things we like and ignore the rest. Suggestions for tools much better than what is recommended here are always wanted.
Tell us what you love.I am a sociologist and writer based in London. Aside from my work at the Institute for Jewish Policy Research (where I am a senior research fellow) and my teaching at Leo Baeck College (a rabbinic seminary), I am the author of 9 non-fiction books. My particular research specialisms are heavy metal music and culture and Jewish communities.
My latest book The Beautiful Death of Ozzy Osbourne: How Metal Teaches Us To Live was published by Harper North in June 2026. More info on the book and my work can be found at kahn-harris.org.


Early mornings: One of the unexpected benefits of Mounjaro/Tirzepatide has been that I sleep well and wake early. I am often at my desk at 7am, rested and ready for the day. This has had a revolutionary impact on my life. Instead of waking late after a broken night’s sleep, I start the day before many other people are even awake. The world is quieter then and there is space to think and to create.
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