---
title: "Midori Professional Diary 2027: A5 Slim Monthly or Weekly"
canonical: "https://stationerytimes.com/guides/midori-professional-diary-2027/"
description: "Midori Professional Diary (PRD) 2027 explained: A5 Slim, monthly block with memo or weekly vertical, 14 months from December 2026, A4 pocket, from 1,430 yen."
category: "Notebooks"
type: "Planner"
published: 2026-10-31
updated: 2026-10-31
author: "Ellis Penhale"
publisher: "Stationery Times"
sources: 2
products:
  - name: "Midori Professional Diary (PRD) 2027, A5 Slim monthly block (22468006) and weekly vertical (22472006)"
    brand: "Midori"
    brand_origin: "Japan"
    made_in: "Japan"
    material: "Cream MD Paper, thread-sewn binding with bookmark ribbon, PVC cover with gold-foil logo"
    released: "2026"
    price_band: "$$ ($5–20 per notebook, typical US retail, October 2026)"
    manufacturer: "Designphil Inc."
    model: "PRD Slim monthly block, Black (22468006)"
    mpn: "22468006"
    url: "https://www.midori-store.net/SHOP/22468006.html"
---

# Midori Professional Diary 2027: A5 Slim Monthly or Weekly

> The Midori Professional Diary (PRD) 2027 is an A5 Slim business diary in two layouts: a monthly block alternating with memo pages, or a monthly block plus a weekly vertical schedule from 8:00 to 22:00. Both run from December 2026 with an A4 tri-fold pocket. Midori lists 1,430 yen (about US$9.05) and 1,870 yen (about US$11.84).

- URL: https://stationerytimes.com/guides/midori-professional-diary-2027/
- Category: Notebooks
- Author: Ellis Penhale
- Published: 2026-10-31
- Updated: 2026-10-31

![The Midori Professional Diary A5 Slim closed and drawn to scale](https://stationerytimes.com/images/raster/midori-professional-diary-2027-illustration-16x9.png?v=f6f6951f)

*The A5 Slim to scale at 1 mm = 2.14 px; the black tint is representative.* Original illustration made for this guide. © Stationery Times. Original drawing (SVG): <https://stationerytimes.com/images/midori-professional-diary-2027-illustration.svg?v=4f8814e5>. Drawings © 2026 Stationery Times, reusable with credit under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).

## Product facts

| Product | Brand | Brand origin | Made in | Material | Released | Price range (typical US retail, October 2026) |
|---|---|---|---|---|---|---|
| Midori Professional Diary (PRD) 2027, A5 Slim monthly block (22468006) and weekly vertical (22472006) | Midori (by Designphil Inc.) | Japan | Japan | Cream MD Paper, thread-sewn binding with bookmark ribbon, PVC cover with gold-foil logo | 2026 | $$: $5–20 per notebook |

- Made in (Midori Professional Diary (PRD) 2027, A5 Slim monthly block (22468006) and weekly vertical (22472006)): Japan. Midori's official online store lists the country of origin as Made in Japan for this diary. Source: https://www.midori-store.net/SHOP/22468006.html

## Key takeaways

- Midori lists two layouts: monthly block with memo and To Do pages (96 pages, about 174 g) and monthly block plus weekly vertical (176 pages, about 254 g).
- The monthly pages run 14 months, December 2026 to January 2028; the weekly vertical pages run 13 months, December 2026 to December 2027, on an 8:00 to 22:00 axis.
- Both are 216 × 125 mm A5 Slim, on cream MD Paper, thread-sewn with a bookmark ribbon (two in the weekly), in a PVC cover with a gold-foil logo.
- The left corner pocket holds about five tri-folded A4 sheets and a guide on the right pocket helps fold A4 sheets into thirds.
- Midori's store lists 1,430 yen (about US$9.05) for monthly and 1,870 yen (about US$11.84) for weekly with tax, and Japan as the country of origin.

## What is the Midori Professional Diary?

**It is Midori's A5 Slim diary for office workers, light enough for one hand and big enough for notes.** Midori, the Japanese stationery maker, sells the Professional Diary, or PRD, in two layouts, each in a black PVC cover with a gold-foil logo. Its store also lists patterned covers with stars, flowers or diamonds.

The A5 Slim size is the selling point: Midori describes it as a balance between a book you can hold in one hand and one with plenty of writing space. For a thicker business book, see our [Midori Business Diary A5 Monthly 2027](https://stationerytimes.com/guides/midori-business-diary-a5-monthly-2027/).

## What are the two layouts?

**Monthly block with memo pages, or monthly block plus a weekly vertical schedule.** Midori says the monthly version alternates a month block with a memo and To Do page, so you can write meeting notes next to each month. The weekly version adds a one-week spread with a vertical timeline from 8:00 to 22:00.

| | Monthly block + memo | Monthly block + weekly vertical |
|---|---|---|
| Body | 216 × 125 × 9 mm | 216 × 125 × 14 mm |
| Weight | About 174 g | About 254 g |
| Pages | 96 | 176 |
| Free memo pages | 26 ruled | 18 ruled |

## What is on the monthly page?

**A list calendar at the left, a month calendar at the lower right and space for memos.** Midori says the block is simple and easy to read, with rokuyo shown. The monthly pages run 14 months, December 2026 to January 2028, and the weekly vertical pages run 13 months to December 2027.


## What do the pockets and sheets do?

**They help you carry meeting paperwork.** Midori says the left corner pocket holds about five A4 sheets folded in thirds, and the right side pocket doubles as a guide for folding A4 in thirds. The back holds a project sheet and a To Do sheet that Midori says to copy onto A4 for meetings.

![A black A5 Slim diary outline with an A4 sheet folded in thirds shown inside it](https://stationerytimes.com/images/midori-professional-diary-2027-fold.svg?v=598a7b6b)

*An A4 sheet folded in thirds against the diary outline at 1 mm = 1 px; the pockets are not drawn. Original illustration made for this guide. © Stationery Times.*

## What changed from earlier editions?

**More memo pages and a My List section.** Midori says that from the 2026 edition the reference tables available on digital tools, such as ID and password lists, time-zone tables and route maps, were replaced with free memo pages, and a list section for gifts and events was added. It also made the number font easier to read in 2025 and darker in 2026.

## Which layout should you choose?

**Pick the monthly version if you mostly write notes, and the weekly if you plan by the hour.** The monthly book is thinner and lighter and alternates months with note pages. The weekly adds a time-based view of each week, which matters if your day is full of meetings, but it is about 80 g heavier and 5 mm thicker. Neither has daily pages. For a pocket weekly with a smaller footprint, see the [Midori Pocket Schedule 2027](https://stationerytimes.com/guides/midori-pocket-schedule-diary-2027/).

## Where is it made, and what does it cost?

**Midori's store lists Japan as the country of origin.** The monthly costs 1,430 yen (about US$9.05) and the weekly 1,870 yen (about US$11.84) with tax at 158 yen to the dollar, both in our $$ band ($5–20). See our [best planners 2027](https://stationerytimes.com/guides/best-planners-2027/) roundup for more.

## Frequently asked questions

### What layouts does the Professional Diary come in?

Monthly block with memo and To Do pages, and monthly block plus weekly vertical. Midori also lists patterned covers for both, with stars, flowers or diamonds, and a limited refill.

### What months does it cover?

Monthly pages run 14 months, December 2026 to January 2028. The weekly vertical pages run 13 months, December 2026 to December 2027, per Midori.

### What is the weekly vertical page like?

A one-week spread with a vertical schedule from 8:00 to 22:00, with an hour of room before and after, plus a memo space for the day's To Dos and a spot for priorities.

### How thick and heavy is it?

Monthly: 216 × 125 × 9 mm and about 174 g with 96 pages. Weekly: 216 × 125 × 14 mm and about 254 g with 176 pages.

### What are the pockets for?

The left corner pocket holds about five tri-folded A4 sheets, and the right side pocket has a guide for folding A4 in thirds, per Midori.

### What are the project and To Do sheets?

Sheets at the back that Midori says you can copy onto A4 and carry to meetings; its store has downloadable PDFs.

### How much does it cost and where is it made?

Midori's store lists 1,430 yen (about US$9.05) for the monthly and 1,870 yen (about US$11.84) for the weekly with tax, made in Japan, which is our $$ band ($5–20).

## Sources

- [Midori online store: Professional Diary (PRD) Slim monthly block Black 2027 (22468006: 14 monthly pages, 96 pages, 216 × 125 × 9 mm, about 174 g, cream MD Paper, A4 pockets, made in Japan, 1,430 yen with tax; read October 31, 2026)](https://www.midori-store.net/SHOP/22468006.html)
- [Midori online store: Professional Diary (PRD) Slim weekly vertical Black 2027 (22472006: weekly vertical 8:00 to 22:00, 176 pages, 216 × 125 × 14 mm, about 254 g, 1,870 yen with tax; read October 31, 2026)](https://www.midori-store.net/SHOP/22472006.html)