The Yonomicon is a book by Mark McBride that, according to its web page [1], is "written mainly to satisfy the burning question left unanswered by all other yoyo books: Okay, now what?".

Released in 1998, it was at its publication the state-of-the-art in yo-yo trick books, not only breaking down and modularizing some of the leading-edge freestyle tricks of the day, but also providing an expressive calculus for describing tricks in shorthand form, something McBride refers to as "TFY Transcription".

The book is written in a witty, wizardy style and contains copious diagrams illustrating individual trick holds and moves. Among players it is still considered the de-facto standard for yo-yo trick books.

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