My book on password authentication is now in the Kindle Store

Password Authentication for Web and Mobile Apps is now available in Amazon Kindle Store. If you like the convenience of buying your ebooks there, go get a copy! Donโ€™t forget to leave a review after reading it.


๐Ÿ‡บ๐Ÿ‡ธ Amazon US (and the rest of the world)
๐Ÿ‡ฌ๐Ÿ‡ง Amazon UK
๐Ÿ‡จ๐Ÿ‡ฆ Amazon CA
๐Ÿ‡ฆ๐Ÿ‡บ Amazon AU
๐Ÿ‡ฎ๐Ÿ‡ณ Amazon IN
๐Ÿ‡ฉ๐Ÿ‡ช Amazon DE
๐Ÿ‡ซ๐Ÿ‡ท Amazon FR
๐Ÿ‡ช๐Ÿ‡ธ Amazon ES
๐Ÿ‡ฎ๐Ÿ‡น Amazon IT
๐Ÿ‡ณ๐Ÿ‡ฑ Amazon NL
๐Ÿ‡ฏ๐Ÿ‡ต Amazon JP
๐Ÿ‡ง๐Ÿ‡ท Amazon BR
๐Ÿ‡ฒ๐Ÿ‡ฝ Amazon MX

The book continues to be available from my website. In fact, you and I get better value if you buy it directly from me: in addition to the MOBI version for Kindle, youโ€™ll also get an EPUB that you can read on any device and a nicely formatted PDF version. You can pay with a credit card, PayPal, or even with your Amazon account (in some countries). And I get a bigger cut of what you paid ๐Ÿ™‚


My book on password authentication is out

I’m super excited to announce that my book, Password authentication for web and mobile apps, is out! I have a lot more to say about why I decided to write it and what the writing and publishing process was in future blog posts. Meanwhile, if you’re a developer who wants to understand password authentication and implement it for your web site or your app, please check it out: