The Day the Crayons Quit

Philomel Books (New York) published 27 June 2013; HarperCollins Children's Books issued the UK hardback (ISBN 9780007513758) within days, publisher listings giving 1 July 2013. This is therefore a near-simultaneous US/UK pair rather than a clean US-only first, and the census claim that the US Philomel printing is 'generally treated as first' matches what the trade does — but the margin is days, not months, and no bibliography was found that adjudicates it formally. The UK HarperCollins hardback is the first British edition and is collected in its own right; name both when describing the book. The 2014 HarperCollins paperback is not a first of anything, and the board-book, gift-set and Crayons Color Collection reissues are 'first thus' traps.