A few brothers asked me what books to start off with when beginning their studies, so I thought I might as well index a list for others to also benefit from. As for what follows:

ʿAqīdah:
1. Uṣūl ath-Thālatha by Shaykh Muḥammad ibn ʿAbd al-Wahhāb | Available in Arabic & English

2. al-Qawā’id al-Arba’ by Shaykh Muḥammad ibn ʿAbd al-Wahhāb | Available in Arabic & English

3. Uṣūl as-Sittah by Shaykh Muḥammad ibn ʿAbd al-Wahhāb | Available in Arabic & English

4. ʿAqīdah al-Wāsiṭīyyah by ibn Taymīyyah | Available in Arabic & English

5. Uṣūl as-Sunnah by Imām Aḥmad | Available in Arabic & English

6. Kitāb at-Tawḥīd by Shaykh Muḥammad ibn ʿAbd al-Wahhāb | Available in Arabic & English

Tafsīr:
1. Tafsīr as-Sa’dī by Shaykh ʿAbd ar-Raḥmān ibn Nāṣir as-Sa’dī | Available in Arabic & English

2. Tafsīr ibn Kathīr by ibn Kathīr | Available in Arabic & English

Sīrah:
1. ar-Rahīq al-Makhtūm by Safī ar-Raḥmān Mubarakpurī | Available in Arabic & English

2. Shamā’il Muḥammadīyyah by Imām at-Tirmidhī | Available in Arabic & English

Ḥadīth:
1. al-Arbaʿīn an-Nawawīyyah by Imām an-Nawawī | Available in Arabic & English

2. Riyāḍ aṣ-Ṣāliḥīn by Imām an-Nawawī | Available in Arabic & English

Fiqh:
1. Mulakhas al-Fiqhī by Shaykh Ṣāliḥ al-Fawzān | Available in Arabic & English

2. Manhaj as-Salikīn by Shaykh ʿAbd ar-Raḥmān ibn Nāṣir as-Sa’dī | Available in Arabic & English

Nahw:
1. Sharḥ al-Ājurrūmīyyah by Shaykh Muḥammad ibn Ṣāliḥ al-‘Uthaymīn | Available only in Arabic

2. an-Nahw al-Wādih by Alī al-Jārm & Mustafā Amīn | Available only in Arabic

Make sure to go through these books with a Sharḥ or a teacher if able إن شاء الله!

I ask Allāh to make this a benefit, & I ask Allāh to increase all of us in knowledge. May Allāh reward the authors & compilers of these great books, & may Allāh reward them abundantly for their contributions to the religion of Islām.

All praise is due to Allāh, may His peace & blessings be upon our final Prophet Muḥammad, his family, his companions, & all those who follow him in guidance.

Ṣafīullāh Labīb ibn Salīm ʿAbd al-Malik
14th of Jumādā al-ʾŪlā 1443