The Science of Happiness

English
Publisher: Marlowe& Co (Avalon Publishers)
New York

The Secret Pulse of Time

English
Publisher: Nation Books
New York

Time: A User's Guide

English
Publisher: Penguin Books

The Formula of Happiness

Time (forthcoming)

Japanese
Verlag: Kodansha

La Formula de la Felicidad

Spanish
Verlag: Ediciones Urano 

El Tiempo

Spanish
Verlag: Ediciones Urano

The Science of Happiness

Chinese
Publisher: CITIC Publishing 

All by Chance

Chinese
Publisher: CITIC Publishing 

Apprendre à être heureux

French
Verlag: Editions Robert Laffont

La Formula della Felicità

Time (forthcoming)

Italian
publisher: Longanesi & C. Società Editrice p.a.

De geluksformule

Dutch
publisher: Ambo Anthos Uitgevers

Puur toeval

Tijd

Dutch
publisher: Ambo Anthos Uitgevers

Lykkeformelen

Norwegian
publisher: Gyldendal

Formula szczescia

Polish
publisher: Wydawnictwo Jacek Santorski 

Time (forthcoming at W.A.B.)

All by Chance

The Science of Happiness  

Time 

Korean
Publisher: Woongjin Co. Seoul

Formula Fericirii 

Romanian
Publisher: Humanitas  

The Science of Happiness

The Secret Pulse of Time (forthcoming)

Chinese (Taiwan)
publisher: Locus Publishing Company

A Formula da Felicidade 

Portugese
publisher: 

A Fórmula da Felicitdade

Portugese (Brazil) 
publisher: GMT Editores

Lyckoformeln

Swedish
publisher: Bokförlaget Natur och Kultur

Formula za sreco

Slovene
publisher: Orbis

La Fórmula de la Felicitat

Catalan
publisher: Grupo Planeta/Columna Edicions, S.A.

Vzorec stesti

Czech
publisher: Jiri Alman

Mutlulugun formülü

Turkish
publisher: Arkadas Yayinevi

Onne Saladus

Estonian
Publisher: Varak

Laimes Formula

Lativian
Publisher:  Jumava