The best book that deals with Tawhid and the Islamic creed

Q 4: What is the best book on Tawhid (Monotheism) and Islamic creed and how can I get it?

A: The greatest books that clarify the true Islamic creed are the Qur'an and the books of Hadith. Other books dealing with this issue are Fath Al-Majid, Al-`Aqidah Al-Wasitiyyah, Al-`Uluww Lil `Aly Al-Ghaffar, Al-Tawassul Wa Al-Wasilah, Mukhtasar Al-Sawa`iq Al-Mursalah, Tat-hir Al-I`tiqad, and Sharh Al-Tahawiyyah.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and companions.