Today I Learned

Today I Learned

This is a place where I store short descriptions of things I learn each day.
—Leon Bambrick.

Available as an online gitbook: and as pdf, epub and mobi

Repository here:


Should be factoids that you expect to need to refer to again. Hence, any factoid that is "Well that's interesting!" but would never be referenced again is NOT wanted here. So they mostly end up being technical things (though the concepts category is a major exception).

The folder structure means things are categorised by ONE main topic, not tagged with endless topics/subtopics.

Inspired by

See Also

The real book I am writing...

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Though this site is published as a free book, there is another book, a real book, that I am working on.

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322 articles 68394 words

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