To Come

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"To Come" is a printing and journalism reference abbreviated "TK." It is used to signify additional material will be added at a later date.

The Breeders called their 2002 album Title TK.

The Chicago Style Q&A on manuscript preparation describes it as imprecise, stating, "It’s best to be more straightforward and specific. For example, use bullets or boldface zeros (••• or 000) to stand in for page numbers that cannot be determined until a manuscript is paginated as a book (but see paragraph 2.37 in CMOS). For items like missing figures, describe exactly what’s missing. In electronic environments, you have recourse to comment features—like the syntax of SGML, which allows for descriptive instructions that will not interfere with the final version of a document. Make sure that whatever you do stops the project in its tracks at some point before publication."

However, the Chicago Manual of Style is geared for book publishers, and TK is much more prevalent in the magazine world than in the book world. TK may be more useful in the magazine world because magazines consist of a greater variety of heterogeneous forms of copy written and edited by a larger number of people under tighter deadlines. Under those conditions, it is more natural and useful for participants to stick TK in "unthinkingly" to save time. In the magazine world, it is common for even important factual details not to be nailed down until quite late in the process, even as the magazine is being typeset. In the book world, such matters are always decided well before the manuscript reaches the proof stage. So it's reasonable for the CMOS to look askance at TK -- even as magazine workers find it very useful to be able to write a phrase like "...went to university TK years ago..." without having to puzzle out what form that TK should take (dots or zeroes?), full in the knowledge that everybody involved in the process knows what is meant, that further work is needed.