Because it is reading material. Instead of someone speaking to you, you have to read it to understand.
the spell is a charm
The Cruciatus Curse is the torturing spell.
Avada Kedavra, the killing curse.
No
The incantation for the leg-locker curse is Locomotor Mortis.
There are no Harry Potter spell books as the series is fictional and the spells do not work.
Avifors
Harry Potter got famous by not dying from the Avada Kedavra spell.
The spell Avada Kedavra, known as the Killing Curse, kills person at whom the spell is aimed.
i think it's Engorgio
It is unknown because it was a non-verbal spell.
It causes the victims teeth to enlarge grotesquely In Goblet of Fire when Harry and Draco were fighting a curse from Draco missed and Hermione was hit by this spell