New York (eCanadaNow) - Harry Potter author JK Rowling testified before a New York court, stating that it was "wholesale theft" to publish an unofficial Harry Potter encyclopedia.

JK Rowling stated to the court that she has stopped working on her new novel due to all of these legal troubles messing with her "creative work."

She submitted evidence in her copyright infringement case against writer Steve Vander Ark and publisher RDR Books.

Rowling accused Vander Ark of using her fiction as the basis for his encyclopedia.

Rowling stated "He has simply taken it and copied it.  It is sloppy, lazy and it takes my work wholesale."

She originally had intentions to write her own encyclopedia and donate the proceeds to charity.  She stated she may now not have the will or heart to do so.

RDR Books has accused Rowling of trying to "claim a monopoly on the right to publish literary reference guides, and other non-academic research, relating to her own fiction."

The case is expected to last most of the week.