“So have knowledge that none has the right to be worshiped except Allâh” [Soorah Muhammad (47): 7]

• Mankind’s Greatest Need.
  
• The Islamic Creed (aqeedah) -excellent articles on aqeedah are sorted by levels on saheefah.org
  • 100 – Introduction to Aqeedah and Seeking Knowledge
  • 101 – Introduction to the concepts of the Ruboobiyyah of Allah, and the singling out of Allah in our Uloohiyyah.
  • 102 – Introduction to the proper methodology of belief in the Names and Attributes of Allah.
  • 201 – Advanced issues from Aqeedah 101, including issues of tawassul and calling upon the dead.
  • 202 - Advanced issues from Aqeedah 102 and an introduction to heresiology in the Islamic Creed.
• The Three Fundamental Principles and The Four Rules – explaining three fundamental principles and four basic rules.
• The Prerequisites of the Declaration of Faith : By Jamaal Zarabozo; also available in [pdf]; here is its translation into Bangla (pdf).
• The Declaration of Faith – Salih al-Fawzan (pdf) – A great book with a bit more detailed on this most important topic.
• Brief Review Of The Essential Aspects Of Tawheed (Bangla, pdf)) : Taken mostly from Dr. Bilal Philips’ book on this subject – The Fundamentals Of Tawheed (pdf). A Bangla translation of this book is also available in print.
• A few more indispensable treatises on Aqeedah:
  • Tenets of Faith (pdf) by Salih al-Uthaimeen.
  • The Pillars Of Faith — Jaafar Idris.
  • Fundamentals of Faith (pdf).
  • The Creed of the four Imams [book, pdf (3.7 MB)],
  • Sufficiency in Creed — Imam ibn Qudaama (d. 620H) [pdf].
  • Creed of Imam Bukhari (d. 256H) [pdf].
  • General precepts of the people of the Sunnah [pdf].
• [pdf] Lecture Notes on Tawheed (Islaamic Monotheism): Assorted and typeset, with little editing, from the lecture resources as found at Salim Morgan’s site.
• For rather shorter materials (in English), see here, and here. For mostly books, this page, and this page have wealth of materials for knowledge-seekers. (excellent work of mirroring).
• [pdf] A Critical Analysis on Shirk - Yasir Qadhi (Transcribed lecture, here are the audio lectures ).
• Many Shades of Shirk [pdf, 5.3 MB 64p] – another excellent book on shirk.
• Regarding the Obligation of Ruling by What Allah Has Revealed (a number of scholars);
• On Ruling By Other Than What Allah Has Revealed – Salih Al-Fawzan.
• Claiming the right of Legislation Legalization and Illegalization.
• Islami Ain na Manar Bidhan (pdf) -a booklet in Bangla written by a scholar of the soil that clarifies many doubts.
• The Book of Waseelah (intercession) — by Al-Allamah al-Albaani (pdf, 3.6M, 169pp). The difinitive scholarly work on the issue.
• Nullifiers of Islam a) by Muhammad bin Jamil Zaino b) From al-Muttaqun site.
• One of the most authoritative texts on aqeedah: Commentary on the Aqeedah of At-Tahawi — by ibn Abi al-Izz al-Hanafi, is now available (in scanned pdf) from this page at saheefah.org. Great read/learning for the serious and advanced students.