The Most Important Books on 'Aqeedah and Tawhid

Question:
He also says, may Allah bless you: I hope Shaykh Salih will mention the most important books that discuss 'aqidah (creed) and tawhid (the oneness of Allah), as we hope they will be comprehensive and sufficient so that we may be on clear guidance and certainty.

Answer:
The books on the correct 'aqidah are, praise be to Allah, numerous, abundant, and available. The greatest of them is the Book of Allah (Glorified and Exalted is He), for it is the reference for 'aqidah and for everything else. Likewise, after the Qur'an, is the Sunnah of the Messenger of Allah (peace and blessings be upon him), his biography, and the authentic hadiths reported from him.
And likewise, the works on the correct 'aqidah. For example, the collection of fatwas of Shaykh al-Islam Ibn Taymiyyah. From this collection is the Al-Wasitiyyah 'Aqidah by Shaykh al-Islam Ibn Taymiyyah. The 'aqidah that covers the chapters of 'aqidah and what Muslims must be upon in their dealings with one another. And from it is the book Al-Tawhid by the Shaykh, the Imam, the reformer Muhammad ibn 'Abd al-Wahhab (may Allah have mercy on him), on the tawhid of worship, the prohibition of shirk (associating partners with Allah), and the prohibition of what affects the 'aqidah of tawhid from the Book and the Sunnah. All its chapters are based on the Book and the Sunnah: a verse from the Book of Allah, or a hadith from the Messenger of Allah (peace and blessings be upon him), or a report from the scholars of the Ummah.
These are great books to which one must return, study, and teach. And praise be to Allah, they are present in our schools and universities, from primary school to postgraduate studies, included in the curricula. Yes.