Short answer: a standard book of stamps contains 20 stamps. That has been the standard booklet size for years and applies to Forever stamps, postcard stamps, and Global Forever stamps alike. At 2026 rates, a book of 20 Forever stamps costs $16.40 (20 x $0.82). If you need more than a book, stamps also come in rolls (coils) of 100.
Here is the full breakdown: how many stamps are in each type of book, what each book costs at current rates, how books compare to rolls and sheets, and how to work out how many books you actually need.
How many stamps are in a book?
A book of stamps holds 20 stamps. The booklet is a folded cardboard cover protecting a pane of 20 self-adhesive stamps inside, which is why it slips easily into a wallet or drawer without the stamps getting damaged. Whether you buy a plain Forever book, a holiday design, or a commemorative series, the count is the same 20.
| Book type | Stamps per book | Cost (2026) |
|---|---|---|
| Forever (First-Class) stamps | 20 | $16.40 |
| Postcard stamps | 20 | $13.00 |
| Global Forever (international) | 20 | $35.00 |
To work out the cost of any book yourself, just multiply the stamp’s value by 20. If you are not sure which stamp your mail actually needs before you buy a book, our guide on how many stamps you need walks through it by weight and type, and the free Stamp Calculator gives you the exact answer in seconds.
How many stamps in a book of Forever stamps?
A book of Forever stamps contains 20 stamps, and this is the book most people mean when they ask. Each Forever stamp covers the postage for a standard one-ounce First-Class letter, no matter when you bought it. Buy a book today at $0.82 per stamp and every one of those 20 stamps will still mail a one-ounce letter years from now, even after the rate goes up.
That is what makes Forever books worth stocking up on: the stamps never lose value and never expire. If you have found an old book in a drawer and are wondering whether those stamps are still good, they are, which we cover fully in do postage stamps expire.
How much does a book of stamps cost in 2026?
Because a book is simply 20 stamps, the price tracks the stamp rate:
- A book of 20 Forever stamps costs $16.40 at the 2026 First-Class rate of $0.82 per stamp.
- A book of 20 postcard stamps costs $13.00 at $0.65 each.
- A book of 20 Global Forever stamps costs $35.00 at $1.75 each, and each one mails a one-ounce letter or postcard to any country.
Buying a book costs no more per stamp than buying singles, so there is no penalty for the convenience. When postage rates rise, the price of a new book rises with them, but any Forever stamps you already own keep working at the new rate for free, which is exactly why buying ahead saves money over time.
Books vs rolls vs sheets: which should you buy?
Stamps come in three main formats, and the right one depends on how much mail you send:
| Format | Number of stamps | Best for |
|---|---|---|
| Book (booklet) | 20 | Everyday household mail |
| Roll (coil) | 100 | Frequent senders, small businesses |
| Sheet / pane | 20 (commemoratives vary) | Collectors, gifts, special designs |
For most households, a book of 20 is the sweet spot: enough to cover bills, cards, and the occasional letter without a hundred stamps floating around. If you mail regularly, a roll of 100 is more economical to keep on hand. Sheets are usually the format for commemorative and collectible designs, and the stamp count on a commemorative sheet can differ from the standard 20.
How many books of stamps do you need?
Since each book is 20 stamps, and one stamp covers one standard letter, a single book mails 20 one-ounce letters. That helps you plan for a big mailing:
- Holiday cards to 40 people: two books.
- 60 wedding invitations: most invitations weigh over an ounce, so budget two stamps each, which is six books for 60 invitations. Weigh one assembled invitation first, since heavier or square envelopes need extra postage.
- Occasional bills and letters: one book usually lasts a typical household months.
If your mailing involves heavier envelopes or invitations, check the exact postage with the Stamp Calculator before buying, so you do not come up short mid-batch.
Where can I buy a book of stamps?
Books of stamps are sold just about everywhere:
- The Post Office counter and USPS.com, which carries every current design and format.
- Grocery stores, pharmacies, and big-box retailers usually stock books of Forever stamps near the checkout or customer-service desk. Our guide on whether CVS sells stamps is a good example of what to expect at a drugstore.
- Banks and warehouse clubs often sell books, sometimes at a slight discount in bulk.
- Online retailers for delivery to your door.
For a plain Forever book you just need everyday postage, a nearby store or a kiosk is fastest and skips the Post Office line entirely. If you want a specific current design or a collectible series, USPS is the most reliable source.
Is it worth buying a book of stamps?
For most people, yes. A book costs no more per stamp than singles, and it strikes the right balance between a roll of 100, which is more than a typical household needs, and loose singles, which are easy to lose. The cardboard cover keeps the stamps protected and together in a wallet or drawer, and if they are Forever stamps, they hold their value indefinitely. The only time a roll makes more sense is if you are a frequent or business sender who will comfortably use 100 stamps.
Frequently asked questions
How many stamps come in a book?
A standard book of stamps contains 20 stamps. This applies to Forever stamps, postcard stamps, and Global Forever stamps.
How much is a book of Forever stamps in 2026?
A book of 20 Forever stamps costs $16.40 in 2026, based on the First-Class rate of $0.82 per stamp. Buying a book costs no more per stamp than buying singles.
How many stamps are in a roll?
A roll, also called a coil, contains 100 stamps. Rolls are the better value for people who mail frequently, while a book of 20 suits most households.
How many stamps in a book of Global Forever stamps?
A book of Global Forever stamps also contains 20 stamps and costs $35.00 in 2026 at $1.75 each. Each one mails a one-ounce letter or postcard to any international destination.
Do the stamps in a book expire?
No. Forever stamps never expire and always cover the current one-ounce First-Class rate, even if you bought the book years ago at a lower price. Older denominated stamps are also still valid.
How many letters can one book of stamps mail?
One book mails 20 standard one-ounce letters, since each Forever stamp covers one letter. Heavier or oversized envelopes need more than one stamp each.
The bottom line
A book of stamps holds 20 stamps, whether it is Forever, postcard, or Global Forever, and at 2026 rates a Forever book runs $16.40. It is the most convenient format for everyday mail, costs no more per stamp than singles, and, with Forever stamps, never loses value. Buy a book for normal household use, step up to a roll of 100 if you mail often, and check the Stamp Calculator first if your mail is heavier than a standard letter.
