Quick answer
A first edition of Planets by Carl Sagan (Time-Life Books, 1966) is identified by: Volume in the Time-Life Life Science Library, 1966, by Carl Sagan with Jonathan Norton Leonard. US true first (Time-Life, 1966).
Checklist — a true first has these:
- Volume in the Time-Life Life Science Library, 1966, by Carl Sagan with Jonathan Norton Leonard
- A first-year 1966 printing is the earliest state, but Time-Life series volumes were reprinted heavily and do not follow a reliable number-line convention, so a specific first-printing point cannot be asserted with confidence
- Publisher imprint reads Time-Life Books
- Not a book-club edition (see below)
| Author | Carl Sagan |
|---|---|
| Publisher | Time-Life Books |
| Year | 1966 |
| True first | US edition |
| Format | Hardcover (trade) |
| Key point | Volume in the Time-Life Life Science Library, 1966, by Carl Sagan with Jonathan Norton… |
| Book-club edition exists? | — |
The points of issue
- Volume in the Time-Life Life Science Library, 1966, by Carl Sagan with Jonathan Norton Leonard
- A first-year 1966 printing is the earliest state, but Time-Life series volumes were reprinted heavily and do not follow a reliable number-line convention, so a specific first-printing point cannot be asserted with confidence
How to confirm the first-printing statement
Publishers stated first printings differently by era. The decisive tells are a printed “First Edition/First Printing” statement, a number line whose lowest number is 1 (Random House ends at 2), or a dated first printing with no later printings listed. Paste your copyright page into the number-line decoder.
How to verify your copy, step by step
- Find the copyright page — the verso (back) of the title page.
- Read the number line — the lowest number is the printing. A line including 1 is a first printing (Random House deliberately ends at 2). Paste it into the decoder.
- Verify this is the US true first — not a later-market or reprint edition.
- Rule out a book-club edition — a blind-stamp on the rear board or a jacket with no printed price marks a book-club copy.
- Photograph four things — the front cover, spine, title page, and copyright page — the standard record for identification.
The dust jacket
For a collectible first edition the dust jacket matters as much as the book. Confirm the jacket is present and unclipped — the printed price should still be at the corner of the flap (a clipped corner or a price-less flap can indicate a book-club issue). First-state jackets can differ from later ones in the cover art, blurbs, or review quotations; where a specific first-state jacket point is known for this title it is noted above.
Binding & format
Where multiple bindings exist, the hardcover trade issue is usually (but not always) the precedence copy — confirm against the points above. Later printings often show cheaper cloth, thinner boards, or simplified spine stamping. A simultaneous signed or limited issue, when one exists, is a distinct state from the trade first.
Is this the true first?
US true first (Time-Life, 1966). A series volume, minor in the Sagan canon.
Telling it from reprints & book-club editions
Series book reprinted many times with no consistent printing-identification convention; first-printing status is difficult to establish and the volume is not individually collected in the way Sagan's authored trade books are.
Frequently asked questions
Is my copy of Planets a first edition?
A first edition of Planets by Carl Sagan (Time-Life Books) is identified by: Volume in the Time-Life Life Science Library, 1966, by Carl Sagan with Jonathan Norton Leonard.
How do I tell the first printing from a later one?
Check the copyright page. A number line whose lowest number is 1 marks a first printing (Random House ends at 2). US true first (Time-Life, 1966).
Is the book-club edition the same as the first?
Series book reprinted many times with no consistent printing-identification convention; first-printing status is difficult to establish and the volume is not individually collected in the way Sagan's authored trade books are.
I have a first edition of Planets — what should I do?
If you are clearing books in the Albuquerque area, the New Mexico Literacy Project offers free pickup, any condition, and makes sure collectible copies are identified rather than lost. To sell, see the author’s collecting guide. Either way, nothing collectible ends up in a landfill.
Glossary
- First edition
- Every copy printed from the first setting of type. Collectors usually want the first edition, first printing (the true first).
- First printing / impression
- A single press run from that setting. The first printing is the earliest and most desirable; later printings are still the first edition but not the true first.
- Number line (printer's key)
- A row of numbers on the copyright page (e.g. 10 9 8 7 6 5 4 3 2 1). The lowest number present is the printing — a line including 1 marks a first printing (Random House deliberately ends at 2).
- Points of issue
- Specific physical details — a stated edition, a number line, a typo, a jacket state — that identify the true first printing.
- Book-club edition (BCE)
- A reprint made for a book club. Tells include a blind-stamped dot or square on the rear board and a dust jacket with no printed price. Not the true first.
- First thus
- The first appearance of a particular version (first paperback, first illustrated, first U.S. printing) — a first of that kind, not the first edition of the work.
Related first editions
How to cite this page
New Mexico Literacy Project. “Is Planets by Carl Sagan a First Edition? Points of Issue.” NMLP First-Edition Identification Reference. Reviewed 3 July 2026. Retrieved from https://newmexicoliteracyproject.org/first-edition/planets. Licensed CC BY 4.0 — part of the open Canonical First-Edition Points of Issue dataset.