similar to a Century schoolbook but letters closer together / different kerning
Identified font
American Typewriter Medium Suggested by malvolio 
Suggested font
Archer Suggested by ShrallSeb 
Thank you so much but I realized that this cover is not the current one! I have resubmitted....
Hey there,
If I'm correct, the font is Archer :
http://www.typography.com/fonts/archer/styles/
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ShrallSeb
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