Concrete Poetry vs Mail Art
具体詩/コンクリート・ポエトリー / メール・アート/郵便芸術
Concrete Poetry comes from Experimental Typography and Mail Art from Avant-garde. One is layout and the other style. They are reached for with some of the same intent, which is where they get confused.
Concrete Poetry
Treats the placement, repetition, blank space and sound of words as the poem itself, not only what they mean.
Mail Art

A network art practice that treats envelopes, postcards, stamps, rubber stamps, addresses, postmarks, and delivery time as compositional parts. The work is a system for reply, forwarding, addition, and arrival rather than one finished sheet.
| Concrete Poetry | Mail Art | |
|---|---|---|
| Era | 1950s–1970s | 1960s–present |
| Family | Experimental Typography | Avant-garde |
| Kind | Layout | Style |
| Cues | Repeated words / Shapes made of letters / Large blanks / Dismantled reading order | Envelopes, postcards, address fields, and postal frames structuring the page / Artistamps, rubber stamps, typing, and photocopy layered together / Folds, abrasion, postmarks, and dates from transit retained / Instructions or space for a recipient to reply, alter, or forward |
| Best used for | Print pieces where a few words carry the reading speed and the pauses · Exhibitions and wall works that take language itself as the subject | Growing a work through exchange among people who cannot share one venue · Making invitations, editions, and records one sequence including the marks of delivery |
| Type | One face at one size, emphasis from position and repetition only | Separate address, date, and instruction with typing, handwriting, and stamps while following postal reading order. |
| Composition | Place words on a grid so reading can start from any direction | Keep delivery information on one face and artwork plus reply area on the other, composing around folds and stamp position. |
| Material | White paper and one black ink, quality carried by register and margin | Use postcards, thin paper, envelopes, photocopy, rubber stamps, and artistamps without erasing transit wear. |
| Caution | When making a shape comes first, the meaning of the words stops answering their position, and the piece is only letters poured into a picture. | Do not publish private addresses, signatures, or postmarks without consent. Avoid designs mistaken for valid postage and materials that obstruct postal handling. |

