A thrift book section is a reading library that happens to charge a dollar or two. That is the correct way to see it, and it is also why “books are worth money” is a bad plan if you mean the section as a whole. Most of what is there is a later printing of a book that was popular, often a book club edition, often with a name in the front. Those are reading copies. They are worth buying if you will read them or if you can sell a clean reading copy for a little more than the fee and the postage. They are not a first-edition business.
The exceptions are specific, and they are on the copyright page, the jacket, and the condition of the paper. This note is how to look. It sits with what to flip only when the book passes the same test as a bowl: identified, complete enough, and under a real sold price after the cost of sending it.
The copyright page is the book
Open to the back of the title page. You want the printing history, a number line, or a statement the publisher actually used. “First edition” printed in a later book can mean the publisher’s first edition statement was left in place, or it can mean what it says. Clubs complicate it further. The book club guide is the trap: smaller boards, a blind stamp, the words book club, a missing price on the jacket. A club copy can be a pleasant book. It is not the trade first, and the prices people quote for the trade first do not apply.
If you do not know the points for that title, do not invent them. Say what the page shows. A wrong “first” is a return and a reputation. A careful description with a photo of the copyright page still sells to the person who knows the points better than you do. Let them know. Do not pretend.
Jackets, clips, and tape
The jacket is often worth more than the boards, and it is the part that tears. Price clips, library marks, tape, and a missing flap are condition. Old tape is not archival because it has yellowed. A jacket that does not belong to that printing is a different problem. Do not marry a first-edition jacket to a later book and call it a unit, unless you say what you did, which you should not do in order to raise the price. Sell the book you have.
Ex-library books have stamps, pockets, and sometimes a discarded mark. Some buyers will not touch them. Say so in the title if the marks are there. A clean reading copy and an ex-library copy do not share comps.
Paper, writing, and smell
Foxing, a broken hinge, a shaken text block, and underlining are condition. A signature is only a signature if it is the author’s and you have a reason to think so. An owner’s name on the flyleaf is an owner’s name. Mention it. Crayon in a children’s book is the price. Little Golden Books are the extreme: a gold spine, a later printing, and a child’s drawing. Most of them are reading copies for a child, not a flip. Early points exist and they are inside the book, title by title. Do not erase crayon. You will tear the paper.
Must and mildew are a reason not to ship the book into someone’s house. A book that smells like a basement will smell like a basement in the mailer. Air it out or leave it. Do not call it “old book smell” if it is mold.
What is actually worth the search
A trade printing you can identify, in a jacket, of a book people still collect, with condition you grade honestly. A children’s book with its points and without the crayon. A signed book where the signature is what you say it is. A lot of clean reading copies of books people still read, priced as reading copies. That is the list. It is not “leather bindings,” which are often book club or later gift editions with gilt that hides a common text. Open the book. The binding is the costume.
Technical manuals, old textbooks, and encyclopedias are heavy and usually obsolete. Shipping them is the price. A local sale or a pass is the decision. Yearbooks and photo albums can matter to a family and can also contain nothing a stranger wants. Do not buy a box of albums for the one snapshot you imagine is famous. Look at the snapshots.
The words on the copyright page
“First edition” on a page is a claim the publisher printed, and publishers use it loosely. Some houses print the phrase on later printings until they change the statement. The number line, a title-page date that matches, and a point that is specific to that book are the checks. A later printing can be a fine reading copy. It is not the printing a collector searched for. Book club editions often omit a price on the jacket and add a blind stamp or a smaller board. Book club editions are that mistake in one object. If the jacket says book club, the listing says book club.
A signature on a tipped-in leaf can be real and still be a limitation page from a signed edition, which is different from an inscription in a trade copy. Photograph the page and name what it is. Do not upgrade it in the title because the ink is old. Remainder marks, a spray of color on the page edge, are a discount the publisher already took. Mention them. They are not a secret first-state point.
How to buy a shelf
If the store prices books at a dollar, you can afford to be wrong on one book and you cannot afford to be wrong on forty. Sort for club marks, for jackets, and for the one odd title. Leave the rest unless you want a personal library. Goodwill bins make this worse, because the books are dirty and priced by weight. A pound of damp paper is not a find. A dry book with a jacket, found in the bin, still has to pass the copyright-page test.
Estate libraries are better and slower. Estate sale strategy is about when the markdown happens. A first printing does not become more first on half-price day, and a club edition does not become a first because the shelf was picked over. The staff’s “rare books” shelf is a prompt to look harder, not a prompt to pay the card.
Selling without a fable
Photograph the copyright page, the jacket flaps, the boards, and one flawed page. Title the book with the title, the fact of a jacket, and book club if it is a club. Pricing means sold comps of that printing and that condition. A asking price with the word rare is not a comp. Fees on a four-dollar book eat the book. Lots of reading copies, or a local box, are the adult response.
Worth can identify a famous jacket from a photo. It cannot see a blind stamp you did not shoot, and it cannot promote a club edition to a first. The book guides are the two mistakes in close-up: Golden Books and club editions. The rest of the shelf is the same habit. Open the book. Read the page the store did not. Then decide if it is a book you want, which is a good reason, or a book someone else will pay postage for, which is a rarer reason than the aisle suggests.