The format that determines the size of the sheet in the diary and, accordingly, its dimensions in length and width. Here, the standard clerical designation through "A" with a number is traditionally used. There are such options:
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A4. A format known as the "standard landscape sheet"; the actual dimensions are 297x210 mm. It is widely used in modern workflow, but is very rarely used in diaries: the product turns out to be rather bulky, it is impossible to carry it in your pocket or in a small purse. As a result, models of this format are rather an exception, designed for those who are primarily critical of ample space for recordings.
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A5. The size is “half of landscape sheet” (standard A4 sheet), specific dimensions are 210x148 mm. A5 is the largest size in common use today — in fact, it is the largest sheet size while the item is still reasonably portable. You should pay attention to such models if a large amount of space on the sheet is more important to you than compact size.
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A6. The format corresponding to a quarter sheet of A4 has dimensions of 148x105 mm (for comparison: this almost corresponds to the size of a standard photo, 10x15 cm). Much more compact than A5, however, the sheet size is half as large. These models will come in handy if you need a diary of small size, as convenient as possible to carry.
Diameter of
organizer's ring binders (see "Product Type"). In fact, it determines "capacity" — the total thickness of the modules that can be placed inside at one time: the size of the rings approximately corresponds to the working distance between the cover pages. This parameter can be referred as secondary; at the same time, it allows you to evaluate the capacity to a certain extent and compare different models with each other.
