Frank Rubin (@contestcen) 's Twitter Profile
Frank Rubin

@contestcen

Puzzle creator, cryptographer, mathematician, world-traveler

ID: 1483864066762452994

calendar_today19-01-2022 18:09:32

116 Tweet

12 Followers

12 Following

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I just finished writing a book, Secret Key Cryptography, which explains codes and ciphers for a general audience. mng.bz/6ZYe

Frank Rubin (@contestcen) 's Twitter Profile Photo

I have just finished writing a new book, Secret Key Cryptography, which explains codes and ciphers for general readers with little math background. mng.bz/6ZYe

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Manning will be featuring my book, Secret Key Cryptography, as their Deal of the Day tomorrow Jan. 26. You will get 45% off if you buy the the book tomorrow using this link mng.bz/WrEx

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My book, Secret Key Cryptography, has its MEAP launch today The Meap Launch discount code mlrubin gives 50% off until Feb. 15 manning.com/books/secret-k…

Frank Rubin (@contestcen) 's Twitter Profile Photo

Manning is running a St Patrick's Day special with 47% off my book, Secret Key Cryptography, and everything else on the Manning website. mng.bz/6ZYe

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My book, Secret Key Cryptography, is the Deal of the Day, today until midnight EST. You can get 43% off all formats: eBook, LiveBook and print. mng.bz/6ZYe

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My book, Secret Key Cryptography, is now at the printer, and should be ready in just a few days. Meanwhile, the book has been issued in ePDF format at a sharply reduced price. Here is a direct link to the book on the Manning website. mng.bz/6ZYe

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Derek Fisher has written a book closely related to my book, Secret Key Cryptography. Derek's book tells you how to incorporate security features throughout the development and implementation of an application. You can find it at mng.bz/N5Wx

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Next week Manning Publications has a week-long sale at a huge discount on everything, including my book, Secret Key Cryptography. Here are highlights: • Mon 17th Apr 45% off all pBooks • Thur 20th Apr 45% off all eBooks • Fri 21st Apr 45% off everything! See manning.com

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Ashsish Ranjan Jha has written a new book, Fight Fraud with Machine Learning. You can get it for 40% off from mng.bz/RxoR

Frank Rubin (@contestcen) 's Twitter Profile Photo

My book, Secret Key Cryptography, is the Deal of the Day at manning.com. The eBook/liveProject will be half off, with the print edition set at $29.99. The deal ends at midnight US ET.

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Less than 3 hours left to get my book, Secret Key Cryptography, at 40% to 50% off. Learn everything you want to know about making and breaking codes and ciphers. enews.manning.com/q/8mXqhv6_urlS…

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Manning is having back-to-back Christmas and New Years sales. 50% off my book, Secret Key Cryptography, and every other book in every format on the Manning website. 50% OFF!

Manning is having back-to-back Christmas and New Years sales.  50% off my book, Secret Key Cryptography, and every other book in every format on the Manning website.  50% OFF!