Books about Tantra

Many people write books about Tantra. Even they only know a little bit about Tantra. Only reason is because they thought they know. Do they know "cina cary"? Do they know "vira cara"? Have they practice some other practices. They were there even before Shiva? There are 64 classic books on Tantra. There are 22 qualifications for being a Tantra students. There are 10 qualifications for being a Tantra guru. If you havnt known these or having more than these kind of knowledge. And you said you knew Tantra. And you said you have been practicing Tantra for many many years. Do you know how to sit on a padmasanana still for an hour? Please, dont write a book about Tantra. You are a person can write a book about Tantra if you know all the knowledge about Tantra. And you are a practitioner. Otherwise your knowledge on Tantra is not complete.