Ami Otsuka — Official Site
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The official author site of Ami Otsuka.
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What you can buy
The books, the one bookstores would not stock, and the goods. All from here.
Product links below include advertising (affiliate links).

“コードを書かない Claude Code” (Claude Code Without Writing Code)
A year of handing a company's paperwork, outsourcing and deliveries to Claude Code. No programming in the text. (Japanese)
Kindle 2,380 yen / paperback 3,278 yen

“#100 Day Challenge”
One app a day for 100 days. Where all of this started. Nikkei BP; #1 in Amazon Japan's programming category. (Japanese)
1,980 yen

“#100 Day Challenge: The Unfiltered Edition”
The part a commercial publisher had no room for, as its own book. PDF. (Japanese)
1,480 yen

Ami's Monologue (note membership)
Decisions and loopholes I never post in public, told through the businesses I am running right now. Members-only posts and board. (Japanese)
from 500 yen a month

AMI RESORT goods
Tees, caps, a mug, stickers. Hotel amenities, more or less. 26 items.
700 to 6,200 yen

