The youngster was very much a diamond in the rough when he arrived at the Parc des Prince last summer as an 18-year old.
Emery's task was to integrate the talented forward into a team already set to contain stars such as Neymar and Edinson Cavani.
During the campaign, PSG strolled to the Ligue 1 title but were knocked out of the Champions League by Real Madrid.
Emery paid for another European failure with his job, but Mbappe had a positive campaign under the Spaniard's watch.
He scored scored 21 goals, provided 16 assists in 46 appearances and was subsequently full of praise for the now Arsenal manager.