I think the acquisition of skills need human guidance,AI has created a quality problem making human self-help books more valuable.
From a new language to public speaking to media training.Some books need more than structure by AI, that is professional knowledge and real-life experience. AI has a vast information ocean, yet a travel book helped me prepare my underwater kit because WiFi does not work underwater, saving me a lot of money I could have wasted on wireless kit.
Take AI apps for teaching languages,Langua is a good example, I think the most successful ones combine human instructors for insights and guidance with AI for drills prescribed and calibrated by the tutor. AI drills are not the same.