Books and drills for swimming

The channel posts heavily revolve around requests for books, particularly related to swimming technique (specifically butterfly stroke). The language mix (Arabic, Russian, English) suggests a diverse but likely educated audience actively seeking to improve their skills. The frequent use of 'كابتن' (Captain/Coach) suggests a relationship with a mentor or instructor. Islamic greetings point to a cultural component. Requests for PDFs indicate a desire for accessible learning. The mix of requests and training content suggests an audience involved in fitness, and likely with a middle socio-economic level given the reliance on free resources like PDFs.