Jean-Jacques Goldman, a popular French singer and songwriter, wrote and produced eleven of the twelve songs on the album.

The album includes a duet with Goldman on "J'irai où tu iras", two successful singles "Pour que tu m'aimes encore" and "Je sais pas", and a song dedicated to Dion's niece who had died of cystic fibrosis, "Vole".

Most notably, it also peaked inside the top ten in the United Kingdom and Ireland, which was an exceptional achievement for a French-language song.

[9] The second single, "Je sais pas", was released in Quebec in July 1995, in Belgium in August 1995 and in France in October 1995.

[13] "Je sais pas" became one of the best-selling singles in France and Wallonia in 1995, reaching respectively numbers six and nine on the year-end charts.

It reached number five on the Airplay Chart and was included as B-side on the next commercial single released in France, "Falling into You".

[15] In May 1996, radio stations in Quebec also started playing "J'irai où tu iras", a duet with Jean-Jacques Goldman.

In mid-June 1995, she performed "Pour que tu m'aimes encore" in the United States on Good Morning America and The Tonight Show.

She also taped the performance of "Pour que tu m'aimes encore" in New York for the British music chart television programme, Top of the Pops.

[25] "Pour que tu m'aimes encore" also won Radio France Internationale Award in 1996 (Conseil Francophone de la chanson).

[27] He noted that the songcraft of Jean-Jacques Goldman, who wrote nearly all of the songs on the album, is remarkably similar to the adult contemporary pop that broadened Dion's international success.

[31] When Dion's next album, Falling into You, was released in March 1996, it debuted at number two, the top position still being occupied by D'eux.

[32][33][34] In Wallonia, D'eux spent thirty-seven weeks at the top of the chart, a record that still stands, and became the best-selling album of 1995.

[39] On the Canadian Albums Chart, D'eux peaked at number twenty-nine and was certified seven-times platinum in 1997 for sales of 700,000 copies.

[44][45] On the European Top 100 Albums, D'eux reached number three and eventually it was certified eight-times platinum by the IFPI for sales of eight million copies in Europe.

It also contains an opendisc access to unpublished photographs of the cover sessions and listen to an alternate version of "J'attendais" with different lyrics by Goldman.

The bonus DVD includes the Sonia Benezra's television special Spécial Dimanche from April 1995, distributed exclusively in Quebec, where Dion interpreted "Je sais pas", "J'irai où tu iras" in duet with Goldman, "Les derniers seront les premiers", "Pour que tu m'aimes encore" and "Vole".

It includes two previously unpublished texts by Goldman, one from 1995 to launch the album, and the other specially done for D'eux – 15th Anniversary Edition.

There are also previously unpublished photographs of the sessions for the cover and reproduction of the text manuscript of Goldman's "Pour que tu m'aimes encore".