The materials provided by Le Papa Picture Book 9.9 are true. Some consumers complained about Le Dad's picture book on the black cat complaint platform, saying that after the 399 escort running class they bought, Le Dad's picture book promised to issue an order within three days, but in fact the information provided was used by tens of thousands of people, and the first order was placed by insiders, which made it impossible for consumers to refund. In addition, the consumer also said that after purchasing the course of 399, Le Dad's picture book reduced the price of materials to 9.9 yuan the next day, and directly reduced the price, which was suspected of defrauding consumers. However, this information only represents the complainant's personal views and experiences, and cannot fully represent the overall situation and service quality of Le Dad's picture books. Therefore, we can't simply give a positive or negative answer to the question "Is the material provided by Le Dad Picture Book 9.9 true?". If you have any questions about the service and materials of Le Dad's picture book, I suggest you learn more information through official channels and make a full investigation and comparison before making a decision.