Jimbocho Book Town Poster

Prompt

{"type":"Japanese illustrated city poster","format":"vertical A1-style promotional poster","theme":"Jimbocho as a town made of books, bookstores, reading culture, playful urban discovery","headline":"{argument name=\"headline text\" default=\"気づいたら、街が本でできてたんです\"}","main_visual":{"description":"A dense isometric illustration of a cheerful book-town city block where buildings, sidewalks, rooftops, plazas, and roads are integrated with oversized books and book pages. The main building is a warm orange bookstore-like block with teal windows, yellow accents, blue trim, exterior balconies, people reading in windows, and open books floating or built into architecture. Surrounding structures include a yellow rooftop reading terrace, a curved blue-and-yellow library facade, a giant closed book forming a plaza, stacks of books as architectural slabs, and stairways shaped like book edges.","style":"flat vector editorial illustration, Japanese poster design, clean black outlines, limited spot-color palette, playful architectural cutaway, lots of tiny human activity, crisp print texture, no photorealism","palette":"{argument name=\"color palette\" default=\"orange, teal blue, mustard yellow, cream white, black, and warm gray\"}","perspective":"high-angle isometric city diorama with no horizon line","mood":"curious, literary, lively, whimsical, community-focused"},"layout":{"poster_orientation":"portrait","top_area":"Large bold Japanese headline in black spans the top, overlapping slightly with the illustrated book roofs below.","centerpiece":"One continuous illustrated city scene fills most of the poster, framed by white margins and vertical side text columns.","bottom_area":"Small explanatory Japanese paragraph across the lower margin, plus production credit and logo at bottom right.","text_columns":{"count":6,"labels":["left upper vertical quote about old and new bookstores coexisting","left middle vertical quote about young people and mixed generations","left lower vertical quote about free papers and daily bookstore visits","right upper vertical quote about book city as a design and architecture inspiration","right middle vertical quote about finding old books like excavating a bookstore street","right lower vertical quote about a person commuting through the used-book district for 20 years"]}},"visible_text":{"headline":"気づいたら、街が本でできてたんです","large_logo":"JIN BO CH...