Affiliate disclosure: This guide links to Meridian, a web app that generates location-based data books for KDP. If you buy through those links, BookPublisherTools earns a commission at no extra cost to you. Puzzle Maker Pro is our own product. I haven’t bought or tested Meridian. Everything I say about it comes from its sales page, its affiliate page, its terms and its checkout page, so nothing below is a tested result.
Last checked: 4 October 2026.
A moon phase calendar looks like the easiest book in the world to make. The phases are public and anyone can paste them into a grid. That’s exactly the problem. Amazon already has plenty of 2027 moon calendars, and most of them are the same twelve pages with a different cover.
This guide shows you how to make one that isn’t. You’ll pick one place and one reader, get the moon data right for that place’s clock, design pages people actually use through the year, and add something that makes the book worth keeping: local sky notes, a keepsake angle, a puzzle section for clear nights.
Why one good calendar beats ten quick ones
Amazon KDP now limits how many new titles you can create. Its help page says it limits title creation “to 2 per book format each week” (KDP: Create a Book, checked 4 October 2026). Publishers Lunch reported that the limit took effect on 21 September 2026, down from 10, and resets on Sunday at 12:00 AM UTC (Publishers Lunch).
That matters for calendars, because they’re seasonal. Between now and the new year you have a limited number of weeks and two paperback slots in each, so don’t spend them on near-copies.
KDP’s content guidelines also rule out content that’s typically disappointing to customers, pointing to the Guide to Kindle Content Quality and its example of content “excessively reused, recycled, or repeated within or across books”. That guide is written for eBooks, but a shelf of moon calendars that differ only by the town on the cover looks a lot like that example in any format. One puzzle publisher on r/KDP summed up what many have found: “Fewer, better-proofed books outperformed pumping out volume.” Take that approach here: one calendar, done properly, then a second only if it’s really different.
Who buys moon calendars?
Shoppers are already searching. Google suggests how to make a moon phase calendar, night sky almanac 2027 and night sky guide 2027. Amazon suggests moon calendar 2027 planner, moon journal 2027 and lunar planner 2027, and puzzle buyers type astronomy word search book and astronomy word search for adults.
Behind those searches are stargazers, photographers, moon gardeners, journal keepers and gift buyers, and each needs a different book. Suggestions don’t show how crowded a search is, so study the first page of Amazon results before you commit.
Step 1: Choose one place and one reader
A “2027 moon calendar” competes with everything. “The 2027 Night Sky over Flagstaff, for backyard astronomers” competes with almost nothing, and it tells you what to put inside.
Some slants that make a moon book different:
- A dark-sky town. Places known for dark skies have visitors who care about moonless nights. A book for that town can list the darkest weekends and local viewing spots.
- A hometown edition. The sky over one town, with local notes, sold where people feel attached to that place.
- A birth-year keepsake. “The sky the year you were born”, with a dedication page. This is a gift book, so the inside should feel like a gift.
- A hobby edition. Moon gardening, night photography, a moon journal with space for a nightly note.
Write one sentence about who the book is for. If it fits every moon calendar on Amazon, keep narrowing.
Step 2: Get the moon data right
The moon reaches each phase at one moment for the whole planet, but that moment falls on different clock times, and sometimes different dates, depending on where the reader lives.
I made that table with my own script using the open-source PyEphem library. Then I checked the full-moon times against the US Naval Observatory’s 2027 moon phase table, and they agree within a minute. It isn’t output from Meridian.
In 2027, nine of the 36 local entries fall on a different date from UTC. The June full moon is on the evening of Friday 18 June in New York, but Saturday 19 June in London and Sydney. The September full moon is late on Wednesday 15 September in New York and early on Thursday 16 September in London. A calendar printed with UTC dates is wrong for millions of readers, and they will notice on the one night they check.
Things to get right for your place:
- Use the local time zone, including daylight saving. In 2027 clocks change on 14 March and 7 November in New York, on 28 March and 31 October in London, and on 4 April and 3 October in Sydney. Moonrise and moonset times shift by an hour on those dates.
- Mind the hemisphere. South of the equator a first-quarter moon is lit on the left, not the right. Draw phase icons for your reader’s sky.
- Expect missing times. Some days have no moonrise or no moonset. Print a dash, not a guess.
- Check against a trusted source such as the US Naval Observatory or timeanddate.com.
You can produce this data two ways.
Option A: Compute it yourself
If you’re comfortable with a little code, an astronomy library and a spreadsheet will do it. It’s slow the first time, but you control every page.
Option B: Use Meridian’s Night Sky template
Meridian is a web app that turns a town name into a 140-page, 6 x 9 KDP interior with a matching full-wrap cover and listing copy. Night Sky is one of the five templates in its front end. The sales page describes it as moon phases, moonrise and moonset, dark-sky nights and meteor showers, “gift-positioned”, for towns in 14 countries and in five languages. It also lists keepsake editions for years back to 1940 using that year’s daylight-saving rules, three interior themes, a dedication page and chart pages.
What to know before you buy, all from the vendor’s own pages:
- Price and refunds. The front end was $17 at checkout when I checked on 4 October 2026. The sales page says the price goes up after launch week but gives no date. All sales are final. There are no refunds.
- What’s included. 25 claims and the 2027 edition year. More claims, more templates (such as Moon Gardening) and future edition years are sold as upsells.
- What “claimed” means. Generating a book locks that template, town, year and language to your account, so other Meridian users can’t generate it. Meridian’s terms say a claim gives no exclusivity outside Meridian. Anyone can still make a moon calendar for the same town another way.
- Predictions, not guarantees. The disclaimer says the data are predictions and not for navigation. Spot-check a few dates yourself anyway.
A generated calendar gives you the data layer. Moon phases for the same town look much the same whoever computes them, so the data alone isn’t a reason to buy your book over the next one. Steps 3 and 4 are where your book earns its place. My research-based Meridian review audits the funnel and the claims, including the volume pitch against the weekly upload cap.
Step 3: Design the year, month and night pages
A good moon book works at three scales.
- A year at a glance. All the new and full moons on one or two pages, so a reader can plan trips and events.
- Month spreads. A grid with the phase on each day, moonrise and moonset, and a line for notes. Mark the darkest nights around each new moon for stargazers.
- Night pages or a journal section. A short page per week or per clear night: date, moon phase, weather, what you saw, a box for a sketch. This turns a reference into something the reader fills in all year.
Use numerals people can read outside by red torchlight. Explain the symbols once at the front. And say what the times mean: “Times are local to Flagstaff, Arizona, on Mountain Standard Time” is a small line that saves confused reviews.
Step 4: Add value on top of the data
This is what buyers can’t get from a phase chart online.
Local sky notes
A few pages about the sky in your place: when the Milky Way is best placed, where locals go for a dark horizon, and which nights of the year are worth staying up for. Meteor showers are a good example of why the moon matters. The Perseids usually peak around 12–13 August, but by my calculation the 2027 moon is about 84% lit that night. The Geminids, usually around 13–14 December, fall almost exactly on the December full moon. The Quadrantids, usually around 3–4 January, get a thin crescent of about 12%. That’s more useful than a list of shower names. Confirm the exact peak dates with the International Meteor Organization’s calendar before you print.
There’s also a big event in 2027: the total solar eclipse of 2 August, whose path crosses southern Spain, North Africa and the Middle East. If your place is near the path, that’s a slant in itself.
A puzzle section for cloudy nights
Not every night is clear. A short puzzle section gives the reader something to do while the clouds pass, and it’s original content that separates your book from the next calendar. An astronomy word search fits well:
That sample came from our own script, using a checked word list, to show the format. It isn’t output from Puzzle Maker Pro or Meridian.
In Puzzle Maker Pro, Standard Word Search builds this kind of puzzle from a plain text list, one word per line. Optional #TITLE: and #DESCRIPTION: lines give each puzzle its own title and description:
#TITLE: The Moon's Year
#DESCRIPTION: Phases, eclipses and meteor showers of 2027
CRESCENT
GIBBOUS
FULL MOON
ECLIPSE
PERSEIDS
GEMINIDS
Ideas that suit a moon book:
- One theme per month. January could be winter constellations, August meteor showers, December solstice words. A puzzle-a-day rhythm works too, if you want a puzzle for every week.
- Use the hidden message. Standard Word Search can spell a phrase through the leftover letters instead of random filler. “CLEAR SKIES” is a nice reward.
- Use diagonals and backwards words for experienced solvers, and turn them off for children. Words longer than the grid’s longest side are dropped, so keep lists to words that fit.
- Try a different grid. Hexagon Word Search puts the letters on a hexagon grid, with words running along three axes.
- Make shaped grids. Standard Word Search can fill a shape instead of a square; a crescent or a star suits the theme. See how to create shaped word search puzzles.
A large-print companion
Gift buyers often buy for older relatives, and searches like astronomy word search for adults point the same way. A large-print astronomy word search book makes a good second title for the same reader: one puzzle per page, with the word list and answer key as large as the grid. Large-print puzzle books for KDP covers sizing, and which puzzle families survive large print helps you choose the puzzle types.
Putting the book together
Puzzle Book Studio builds a puzzle interior with titles, page numbers and a solutions section. Use it for the companion book, or as the puzzle pages you add to your calendar in your own layout tool. On editions: a book built from one puzzle collection works in Puzzle Book Studio Creative. Combining several collections in one book (an astronomy set and a seasons set, say) is a Productivity job. The editions page has the details. Every paid edition lets you sell the books you make; see commercial rights explained.
Step 5: Proof it, then publish
KDP counts a title against the weekly limit when you create it, not when you publish it, and you can only order a printed proof once the book exists as a draft with its files approved in the previewer (KDP: order proof copies). So do as much checking as you can before you create the title:
- Check three dates against a published source, including one near a daylight-saving change.
- Check the hemisphere of your phase icons.
- Print a month spread at home and read it outside at night, to check the numbers are readable.
- Solve one puzzle per section and compare it with the answer key.
- Write a description that matches the inside: the place, the time zone, the year, the page types, the puzzle section.
- Answer KDP’s AI question honestly. If an AI tool wrote any text you use, including listing copy, KDP asks you to disclose it (content guidelines).
Then create the title, order a printed proof and read it before you click Publish. Updating the files of a draft you’ve already created isn’t a new title.
A sensible publishing pace
With two slots a week and a seasonal deadline, plan your calendar season like this:
| Week | What you do | New titles created |
|---|---|---|
| 1 | Choose the place and reader. Generate and check the data. Draft a month spread. | 0 |
| 2 | Write the sky notes. Make the puzzle section. Create the paperback title as a draft and order a printed proof. | 1 paperback |
| 3 | Fix what the proof shows in the same draft. Publish the calendar. | 0 |
| 4–5 | Read feedback. If it’s working, make the large-print companion or a truly different second place, with its own notes and puzzles. | 0–1 a week |
If a second town would only change the name on the cover, don’t make it. Use the slot for something new.
Related guides
- For anglers. How to make a fishing log book uses the same moon data for a solunar calendar and catch log.
- The tool. My Meridian review is research-based and audits the vendor’s claims.
- Series. Puzzle book series on KDP covers how to build a series of different books rather than copies.
FAQ
How do you make a moon phase calendar?
Pick a place and its time zone, get the moon data for that place, check a few dates against a published table, and lay it out as a year view and month spreads.
Are moon phase dates the same everywhere?
The moment of each phase is the same worldwide, but the local date and time are not. In 2027, the June full moon falls on 18 June in New York and 19 June in London and Sydney.
Do I need Meridian to make a moon calendar book?
No. You can compute the data yourself and design the pages in any layout tool. Meridian saves the data and layout work. It costs $17 at the time of writing, with no refunds, and you still need to add what makes your book worth buying.
How many moon calendars should I publish?
Fewer than you might think. KDP allows two new titles per format each week, and near-identical books look like the repeated content its guidance warns about. Make one good book first, and make the next one different inside, not just on the cover.
See Meridian’s current price and what’s included (affiliate link)