What are the books or sources that help a young man learn the fundamentals of religion?

Begin by learning the correct creed, and read the book "Aqeedat Al-Mu'min" (The Creed of the Believer) by Al-Jazairi. Simultaneously, learn the necessary rulings of Fiqh, such as those pertaining to purity and prayer, through "Al-Fiqh Al-Muyassar" (Simplified Fiqh). Devote attention to understanding the Book of Allah while commencing its memorization, seeking assistance from Tafsir Al-Sa'di. Take care of the Prophet's hadith and Sunnah (peace and blessings be upon him), starting with "Al-Arba'in Al-Nawawiyyah" (The Nawawi Forty Hadith) and its commentaries. Additionally, read books on ethics and spiritual refinement, such as "Mukhtasar Minhaj Al-Qasidin" (Abridged Path of the Seekers) and "Al-Daa' wa Al-Dawaa'" (The Disease and the Cure) by Ibn Al-Qayyim.