The Book of the law :"is cursed book?"

I heard that the "book of the law" by Aleister Crowley is cursed book.
because at the start of chapter 1 the author writes
"The study of this Book is forbidden. It is wise to destroy this
copy after the first reading.Whosoever disregards this
does so at his own risk and peril. These are most dire."

This is incorrect. The crowley give an advise here not a direct order.
There is no curse upon this book so read it for free.