In the era of intelligence, the book publishing industry is experiencing new vitality but is also facing challenges such as severe homogenization and increasing competition. Taking the British bestseller The Thursday Murder Club as a case study, this paper conducts an in-depth analysis of the book series' publishing timing, editorial planning, and marketing strategies. Through this case study, the paper summarizes successful experiences and insights into creating professional bestsellers, offering references and suggestions for the publishing industry to address market challenges and launch bestsellers. The study points out that the publishing industry should pay attention to trends and changes, accurately grasp market demand, adjust marketing strategies promptly, and emphasize collaboration and joint promotion.