Is the practice of palmistry considered permissible in Islam, given that it involves reading palms to predict the future or understand personal characteristics?
Bismihi ta'ala
Reading a person's palm (palmistry), or coffee reading reading, etc, is something to avoid, even for the sake of entertainment. As for receiving a reading, this kind of fortune-telling has no value, and therefore should not be believed in at all. It is also impermissible to have absolute belief in it, and to act upon what was said as well.
And Allah knows best