About shipping
Shipped from warehouse
These products are shipped from BOOTH warehouse as soon as payment is confirmed.
Shipped from home
These products are packed and shipped from the seller. "Ships within ~ days" are the estimated number of days from when payment is confirmed at BOOTH until the item is shipped.
Items shipped by Anshin-BOOTH-Pack will be delivered anonymously.
Download item
You will be able to download these products from "Purchase History" at any time after payment is confirmed.
Shipped from pixivFACTORY
These products are manufactured and shipped by pixivFACTORY as soon as payment is confirmed.
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形式：PDF / EPUB ページ数： 71 文字数：約２万文字 礼儀とは何か？礼儀はバージョンアップできるのでは？との仮定から、エンジニアリング視点で礼儀を分析した本です。 飛行機のフライト中に書き上げた本です。BETA版です。 構成は目次の写真もご覧下さい。 #マッハ新書
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