The renowned book is in need of no introduction as Allaah has granted it acceptance amongst His creation. It is a book authored on clarifying the reality of Monotheism and the different types of polytheistic beliefs and practices, the author suffices himself to mentioning the relevant Ayaat, Ahaadeeth and statements of the Salaf under each chapter and then mentions the benefits derived from them.

Al 'Allaamah Muhammad Amaan al Jaamee said concerning it:

"It is a magnificent book, it consists of selected verses from the Book of Allaah, Prophetic Ahaadeeth and statements from the people of knowledge, a book that Allaah benefited a lot of people with, we advise our youth to pay a great deal of attention to this book, by memorizing and understanding it, and by reading its explanations so that they may by solid in ‘Aqeedah."

A searchable program of this book in Arabic can be downloaded here

Explanations of this book [unordered]:

Tayseer al ‘Azeez al Hameed.
‘Abdullaah ibn Muhammad ibn ‘Abdul Wahaab.

Fat-h al Majeed.
‘Abdur Rahmaan ibn Hasan ibn Muhammad ibn ‘Abdul Wahhaab.

Qurat ‘Uyoon al Muwahiddeen.
‘Abdur Rahmaan ibn Hasan ibn Muhammad ibn ‘Abdul Wahhaab.

Al Qawl as Sadeed fee Maqaasid at Tawheed.
‘Abdur Rahmaan ibn Naasir as Sa’dee.
This book has been translated.

Haashiyat Kitaab at Tawheed.
‘Abdur Rahmaan ibn Muhammad ibn Qaasim.

Al Jadeed fee Sharh Kitaab at Tawheed.
Muhammad ibn ‘Abdul ‘Azeez al Sulaymaan al Qar’aawee.

Ad Durr an Nadeed.
Sulayman ibn ‘Abdur Rahmaan ibn Hamdaan.

At Tawdeeh al Mufeed.
‘Abdur Rahmaan ibn Muhammad ibn Ahmad ad Duwaysh.

Ifaadat al Mustafeed.
‘Abdur Rahmaan ibn Hamad ibn Muhammad al Jitaylee.

Ibtaal at Tandeed.
Hamad ibn ‘Alee ibn Muhammad ibn ‘Ateeq.

Al Jaami’ al Fareed.
‘Abdullaah ibn Jaarulllaah ibn Ibraaheem.

Sharh Kitaab at Tawheed.
Muhammad ibn Ibraheem Aal ash Shaykh.

Al Qawl al Mufeed.
Muhammad ibn Saaleh al ‘Uthaymeen.

Ad Darr an Nadeed.
Sa’eed ibn ‘Abdul ‘Azeez al Jandool.

Haashiyat al Mustafeed.
‘Abdullaah ibn Ibrahmee al Qar’aawee.

I’aanat al Mustafeed.
Saaleh ibn Fawzaan al Fawzaan.

Al Mulakhas.
Saaleh ibn Fawzaan al Fawzaan.
This book has been translated.

Tahqeeq at Tajreed.
‘Abdul Haadee ibn Muhammad ibn ‘Abdul Haadee.

Sharh Kitaab at Tawheed.
‘Abdul ‘Azeez ibn Baaz.
This book has been translated.

Sharh Kitaab at Tawheed.
Saaleh Aal ash Shaykh.
This book had been translated.

Fadl al Ghanee al Hameed.
Yaasir Husayn Burhamee.

Audio Explanations:

Explanation by Shaykh Ibn Baaz in ten tapes can be found here.

Explanation by Shaykh Ibn ‘Uthameen can be found here.

Explanation by Shaykh Saaleh al Fawzaan can be found here.

Explanation by Shaykh Saaleh Aal ash Shaykh can be found here.

Explanation by Shaykh ‘Abdur Razzaaq al Badr in 24 tapes can be found here.

Audio explanations in English:

This book has been translated into a number of languages.