Midori Planner Professional Diary Weekly Vertical Black 2027 (Slim)

The Midori Professional Diary PRD Weekly Vertical Slim 2027 in black is an A5-slim planner with vertical weekly layout – a format that Midori has produced unchanged since 1989 and which remains widespread among Japanese professionals today. The black PVC cover features discreet gold foil embossing and sits flat and slim in the hand at 21.6 × 12.5 cm. Inside, the planner uses Midori MD Paper, the smooth, ink-friendly paper from the MD Notebook programme, thread-bound and fitted with two ribbon bookmarks.

Features

• Vertical weekly layout with hourly grid: Each weekly double-page spread displays the seven days as vertical columns with hourly axis – appointments can be entered precisely by time of day, and overlaps and free time windows are visible at a glance.
• Combination of monthly and weekly overview: The monthly pages (December 2026 to January 2028) provide an overview of longer periods, the weekly pages (December 2026 to December 2027) detailed planning – both levels are combined in the same planner.
• Midori MD Paper: The interior paper is smooth-calendered and smudge-proof – fountain pens glide without resistance, ink dries evenly and without feathering. Fast-drying gel refills and oil-based ballpoint refills also work reliably on this surface.
• Thread-bound block: The spine lies flat even when the planner is completely filled and has become thicker through glued-in notes. Pages do not come loose.
• Two ribbon bookmarks: One for the current monthly page, one for the current weekly page – no need to flip through, direct access to both planning levels.
• Embedded pen holder in the cover: Integrated flush so it doesn't add bulk when writing and doesn't leave an impression on the opposite page.
• Interior pocket in the cover: Folds to hold A4 paper – suitable for meeting notes, printed agendas or notepads.
• Appendix pages for structural planning: Project pages, to-do sheets, address pages and ruled memo fields complement the weekly layout without needing a separate notebook.

Use & Tips

• Hour-precise daily planning: The hourly grid in the vertical weekly layout is ideal for days with fixed appointments in quick succession – meetings, calls and deadlines are entered as blocks, and free time windows remain visible.
• Parallel use of both layouts: The monthly page functions as an advance overview for longer projects or trips; the weekly page carries daily detailed planning. Both instantly accessible via ribbon bookmark.
• Fountain pens and ink: MD Paper works well with water-based inks – fountain pens with fine to medium nibs leave sharp writing without ghosting. When working with wet inks, allow the page to dry briefly before turning.
• Project pages as meeting notes: The pre-printed project pages in the appendix structure meetings with title, date and task fields – can be kept directly in the planner without an additional notebook.
• Interior pocket as temporary filing system: Incoming documents or handwritten notes go into the cover pocket and are filed away or discarded after processing – the planner stays slim.
• Transport: The A5-slim format (216 × 125 × 14 mm) fits into the inner pocket of most briefcases and larger jacket pockets – without the cover warping or the block deforming.

For Planner Enthusiasts

The vertical weekly layout of the PRD Slim is a specific planning method known in Japan as "Jikan-jiku" (time axis): the hours run from top to bottom, the weekdays next to each other. Compared to the horizontal weekly layout, where each day gets a line, the vertical axis allows a visual duration representation of appointments – a two-hour meeting takes up twice as much space as a one-hour one. The MD Paper in the PRD Slim corresponds to the paper in the MD Notebooks: 90 g/m², cream white, smooth-calendered, pH-neutral and acid-free – archival-quality without yellowing over time. The black version features matte gold foil embossing rather than glossy, giving the cover a restrained, office-suitable appearance.

Technical Specifications