Question: what are popular nail shapes?
Answer: Coffin nails (a.k.a. ballerina nails) These long tapered nails have squared-off tips and are said to resemble coffins (if you have a dark mind) or ballerina slippers (if you have an even darker mind). ... 
Almond Nails. ... 
Oval Nails. ... 
Stiletto Nails. ... 
Square Nails. ... 
Squoval Nails.