June 24, 2018 –
The Next Web
June 21, 2018 –
Handelsblatt
October 1, 2017 –
Forbes
September 25, 2017 –
TechCrunch
September 19, 2016 –
Cultured Vultures
May 20, 2016 –
Book Works
May 18, 2016 –
Buchreport
May 17, 2016 –
Gazeta Wyborcza
May 16, 2016 –
Atlantico
May 06, 2016 –
Il Libraio
May 04, 2016 –
Todo eReaders
May 02, 2016–
Nexo Jornal
April 29, 2016 –
Flavorwire
April 28, 2016 –
Digital Book World
February 03, 2016–
International Business Times
August 04, 2015 –
Gründerszene
June 10, 2015 –
The Wall Street Journal
June 09, 2015 –
The Guardian