" 1. The introduction, which also consists of three parts, each starting with the phrase: "Know may Allaah have mercy upon you":

The first: The obligation of four matters.

The second: The obligation of three matters.

The third: The way of Ibraaheem, may the Salaat and Salaam be upon him.

2. The main part of the book where he speaks about the three fundamental principles:

The first: Having knowledge of Allaah.

The second: Having knowledge of the religion with its three levels.

The third: A very concise biography of the Messenger - صلى الله عليه وسلم.

3.The conclusion of the book.

It consists of issues related to the afterlife; believeing in resurrection, the accounting and the obligation of disbelieving in Taaghoot including the explanation of its meaning and leaders.

The book is written in a simple manner packed with evidence from the Qur-aan and Sunnah.

Explanations:

Sharh al Usool ath Thalaathah by Shaykh ibn Baaz

Sharh Thalaathat al Usool by Shaykh ibn 'Uthaymeen

Sharh al Usool ath Thalaathah by Shaykh Saaleh al Fawzaan

At Ta'leeqaat 'ala al Usool ath Thalaathah by Shaykh Ahmad an Najmee

Sharh al Usool ath Thalaathah by Shaykh Muhammad Amaan al Jaamee

Haashiyat al Usool ath Thalaathah by Shaykh 'Abdur Rahmaan al Qaasim.

Sharh Thalaathat al Usool by Shaykh Saaleh Aal ash Shaykh

Sharh Thalaathat al Usool by Shaykh Saaleh al Lhaydaan

and others

Ithaaf al 'Uqool bi Sharh Thalaatatul al Usool Shaykh 'Ubayd al Jaabiree.

Audio explanations:

Explanation by Shaykh ibn Baaz in two tapes here.

Explanation by Shaykh ibn 'Uthaymeen in tapes here.

Explanation by Shaykh Saaleh al Fawzaan in 8 tapes here.

Explanation by Shaykh Saaleh al Lhaydaan.

Explanation by Shaykh Ahmad an Najmee

Explanation by Shaykh Muhammad Amaan al Jaamee in 2 and 10 tapes here.

Explanation by Shaykh Saaleh Aal ash Shaykh in 6 tapes here.

Explanation by Shaykh Saaleh as Suhaymee in 4 tapes here.

Explanation by 'Ubayd al Jaabiree in 6 tapes here.

Explanation by Shaykh Saaleh al Ghunaymaan in 6 tapes here

Explanation by Shaykh Zayd al Madkhalee in 6 tapes here.