Editions of Hello world

Paperback, 243 pages

English language

Published Sept. 6, 2018 by Transworld Publishers Limited.

Paperback, 234 pages

Italian language

Published July 14, 2019 by Bollati Boringhieri.

eBook

English language

Published Dec. 3, 2018 by Transworld Publishers Limited.

256 pages

English language

Published July 14, 2019 by Norton & Company, Incorporated, W. W..

243 pages

English language

Published July 14, 2018 by W.W. Norton & Company.

mp3 cd

Published Feb. 12, 2019 by Audible Studios on Brilliance Audio, Audible Studios on Brilliance.

256 pages

English language

Published July 14, 2018 by Transworld Publishers Limited.

272 pages

English language

Published July 14, 2018 by Norton & Company, Incorporated, W. W..

320 pages

English language

Published July 14, 2019 by Transworld Publishers Limited.