Mark Jeffrey is an American author and

entrepreneur Entrepreneurship is the creation or extraction of economic value. With this definition, entrepreneurship is viewed as change, generally entailing risk beyond what is normally encountered in starting a business, which may include other values th ...

. He is known for authoring ''

The New York Times ''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid ...

'' bestselling books, ''Max Quick Series''. Most recently, Jeffrey founded Guardian Circle, an app-based personal safety network for friends, family and neighbors. Jeffrey's previous companies include The Palace (backed by

Time Warner Warner Media, LLC ( traded as WarnerMedia) was an American multinational mass media and entertainment conglomerate. It was headquartered at the 30 Hudson Yards complex in New York City, United States. It was originally established in 1972 by ...

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the developers of the x86 seri ...

and SoftBank; sold to Communities.com in 1998 with 10 million users), ZeroDegrees (sold to InterActiveCorp / IAC in 2004 with 1 million users), ThisWeekIn (co-founded with

Kevin Pollak Kevin Elliot Pollak (born October 30, 1957) is an American actor, comedian, impressionist and podcast host. He has appeared in over 80 films; his roles include Sam Weinberg in Rob Reiner's legal film ''A Few Good Men'', Jacob Goldman in '' Grump ...

and

Jason Calacanis Jason McCabe Calacanis (born November 28, 1970) is an American Internet entrepreneur, angel investor, author and podcaster. His first company was part of the dot-com era in New York. His second venture, Weblogs, Inc., a publishing company tha ...

), and

Mahalo.com Mahalo.com was a web directory (or human search engine) and Internet-based knowledge exchange (Question-and-answer website) launched in May 2007 by Jason Calacanis. It differentiated itself from algorithmic search engines like Google and Ask.com, ...

/ Inside.com (backed by

Elon Musk Elon Reeve Musk ( ; born June 28, 1971) is a business magnate and investor. He is the founder, CEO and chief engineer of SpaceX; angel investor, CEO and product architect of Tesla, Inc.; owner and CEO of Twitter, Inc.; founder of The Bori ...

, Sequoia,

Mark Cuban Mark Cuban (born July 31, 1958) is an American billionaire entrepreneur, television personality, and media proprietor whose net worth is an estimated $4.8 billion, according to ''Forbes'', and ranked No. 177 on the 2020 ''Forbes'' 400 list ...

and others). Mark also consulted for several years directly for

Travis Kalanick Travis Cordell Kalanick (; born August 6, 1976) is an American businessman best known as the co-founder and former chief executive officer (CEO) of Uber. Previously he worked for Scour, a peer-to-peer file sharing application company, and was th ...

, the founder of

Uber Uber Technologies, Inc. (Uber), based in San Francisco, provides mobility as a service, ride-hailing (allowing users to book a car and driver to transport them in a way similar to a taxi), food delivery (Uber Eats and Postmates), package ...

, on his first company,

Red Swoosh Red Swoosh was a peer-to-peer file sharing company founded by Travis Kalanick and Michael Todd in 2001 and acquired by Akamai Technologies in 2007. The Red Swoosh technology included a centralized directory that indexed online clients and caches ...

. Jeffrey's first novel, ''Max Quick: The Pocket and the Pendant'', was published in hardcover and ebook by

HarperCollins HarperCollins Publishers LLC is one of the Big Five English-language publishing companies, alongside Penguin Random House, Simon & Schuster, Hachette, and Macmillan. The company is headquartered in New York City and is a subsidiary of News Cor ...

in May, 2011. The book was initially

podcast A podcast is a program made available in digital format for download over the Internet. For example, an episodic series of digital audio or video files that a user can download to a personal device to listen to at a time of their choosing ...

as a series of episodic

mp3 MP3 (formally MPEG-1 Audio Layer III or MPEG-2 Audio Layer III) is a coding format for digital audio developed largely by the Fraunhofer Society in Germany, with support from other digital scientists in the United States and elsewhere. Origin ...

's and received over 2.5 million downloads. Jeffrey holds a B.S. degree in Computer Science from the

University of New Hampshire The University of New Hampshire (UNH) is a public land-grant research university with its main campus in Durham, New Hampshire. It was founded and incorporated in 1866 as a land grant college in Hanover in connection with Dartmouth College, mo ...

and is a

TEDx TED Conferences, LLC (Technology, Entertainment, Design) is an American-Canadian non-profit media organization that posts international talks online for free distribution under the slogan "ideas worth spreading". TED was founded by Richard Sau ...

speaker. On Twitter, he is @markjeffrey.

Bibliography

*''Timewarden (2016)'' *''The Case for Bitcoin (2015)'' *''Bitcoin Explained Simply (2014)'' *''Prisoner of Glass (2014)'' *''Max Quick: The Bane of the Bondsman (2013)'' (HarperCollins) *''Max Quick: The Two Travelers (2012)'' (HarperCollins) *''Armand Ptolemy and the Golden Aleph (2012)'' *''Max Quick: The Pocket and the Pendant'' ''(2011)'' (HarperCollins) *''Age of Aether (2011)''

References

External links

* {{DEFAULTSORT:Jeffrey, Mark Year of birth missing (living people) Living people American businesspeople American writers