How to Identify a Clarion Books First Edition

How to identify a first printing

• Primary tell for the Houghton Mifflin era (1979 onward, which covers essentially all collected Clarion titles): a full descending number line on the copyright page whose lowest digit is 1 — e.g. '10 9 8 7 6 5 4 3 2 1'. Presence of the 1 = first printing. Clarion adopts the Houghton Mifflin house convention because it became an HM imprint in 1979.
• Later printings drop the low digit(s): '10 9 8 7 6 5 4 3 2' (no 1) is a second printing, '10 9 8 7 6 5 4 3' a third, and so on. If the line does not end in 1 it is NOT a first printing, regardless of any 'First Edition' words elsewhere.
• The Houghton Mifflin number line usually carries a letter/manufacturer (printer or plant) code — commonly a single letter set off from the digits, and it may appear either before the line (e.g. 'W 10 9 8 7 6 5 4 3 2 1') or after it. This code identifies the printing plant, not the edition; judge the printing solely by whether the digit 1 survives in the number line and ignore the letter.
• Clarion first printings are typically identified by the number line alone — dealers describe the first edition simply as 'number line 10 to 1 on the copyright page,' with no separate printed 'First Edition' phrase required. Verified against Tuesday (David Wiesner, Clarion, 1991; Caldecott Medal 1992) and The Midwife's Apprentice (Karen Cushman, Clarion, 1995; Newbery Medal 1996), whose first-printing points are the 10-to-1 number line.
• Cross-check the copyright date against the printing: for a genuine first printing the copyright year should match the stated first publication year (e.g. a Tuesday copyrighted 1991). A title with an earlier copyright but a shortened number line, or a later stated date, indicates a reprint.
• Earliest Clarion years (1965 to 1979, under Seabury Press ownership before Houghton Mifflin) predate the Houghton Mifflin number-line era and are less standardized; Seabury-era first-edition practice is poorly documented, so for that narrow early window rely on an explicit 'First Edition' / 'First Printing' / 'First published' statement or title-page dating rather than assuming a number line.

Notable points & cautions

• Clarion does NOT rely on the printed words 'First Edition' for the Houghton Mifflin era — the operative point is the number line ending in 1. Do not treat the absence of a 'First Edition' phrase as disqualifying, and do not treat its presence as sufficient if the number line has already dropped the 1.
• Ownership/imprint history matters: children's program started at Seabury Press (1964/65), Clarion became a Houghton Mifflin imprint in 1979, then Houghton Mifflin Harcourt (2007), and is now under HarperCollins (HMH trade acquisition completed May 2021; children's books published as Clarion Books under HarperCollins from July 2021). The documented number-line convention is the Houghton Mifflin-era practice, which covers the collected titles (Wiesner, Cushman, etc.).
• Book-club editions (BOMC / Scholastic / Weekly Reader) are the main reprint trap for popular Clarion picture books and Newbery/Caldecott winners: they typically lack a number line entirely, may carry a blind-stamp dot on the rear board, are often smaller/lighter with cheaper paper, and frequently show no price on the jacket flap — none of these is a Clarion first printing.
• Later Houghton Mifflin Harcourt reissues and paperback editions of award winners are common; verify the number line ends in 1 AND that the jacket matches the first-printing state, since award seals ('Newbery Medal'/'Caldecott Medal') printed on the jacket appear only on printings issued after the award and are a reprint tell (the true first printing of a title predates its medal).

Imprints

First editions also appear under: Clarion Books, A Clarion Book, Clarion Books / Houghton Mifflin Company, Clarion Books / Houghton Mifflin Harcourt, Clarion Books (an imprint of HarperCollins). Each generally follows the house convention above.

Frequently asked questions

How do I know if my Clarion Books book is a first edition?

Check the copyright page. Primary tell for the Houghton Mifflin era (1979 onward, which covers essentially all collected Clarion titles): a full descending number line on the copyright page whose lowest digit is 1 — e.g. '10 9 8 7 6 5 4 3 2 1'. Presence of the 1 = first printing. Clarion adopts the Houghton Mifflin house convention because it became an HM imprint in 1979. Later printings drop the low digit(s): '10 9 8 7 6 5 4 3 2' (no 1) is a second printing, '10 9 8 7 6 5 4 3' a third, and so on. If the line does not end in 1 it is NOT a first printing, regardless of any 'First Edition' words elsewhere.

Does Clarion Books use a number line?

Later printings drop the low digit(s): '10 9 8 7 6 5 4 3 2' (no 1) is a second printing, '10 9 8 7 6 5 4 3' a third, and so on. If the line does not end in 1 it is NOT a first printing, regardless of any 'First Edition' words elsewhere.

Is a book-club edition a Clarion Books first edition?

No. Book-club editions reprint the text but are not the true first edition. Clarion does NOT rely on the printed words 'First Edition' for the Houghton Mifflin era — the operative point is the number line ending in 1. Do not treat the absence of a 'First Edition' phrase as disqualifying, and do not treat its presence as sufficient if the number line has already dropped the 1.

What era does this cover?

This covers Clarion Books (Children's program began 1964 / imprint publishing from 1965 (Seabury Press); Houghton Mifflin imprint from 1979 — the collectible-era convention below is the Houghton Mifflin house practice, applicable from the 1979 acquisition onward). Conventions changed over time, so confirm the era of your copy.