Any good books about Islam

Something that only has authentic sources and reasoning/logic and provides a good comprehensive overview of Islam. Doesn't have to be super detailed but not super light either.

The best books possible are the Qur'aan and the authentic books of Hadith like Sahih al-Bukhaari and Sahih Muslim.

You will not find any book better than the Qur'aan.
You will not find any book more authentic after the Qur'aan then Sahih al-Bukhaari.

Read these books. You will benefit immensely.

.alhamdulillah. said:

Something that only has authentic sources and reasoning/logic and provides a good comprehensive overview of Islam. Doesn't have to be super detailed but not super light either.

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If you want to learn Aqeedah, then the best book you can refer to is Sharh Al Aqeedah Al Tahawiyya. It's the book written by Imam Tahawi and it's the most authentic book on Islami Creed in the Muslim world.

Alongside, if you want a quick guide, then refer to Nullifiers Of Islam, a book which explains which activities will make you a non-Muslim, and we think it's easy, we know it all, but not really, we commit so many sins often that may lead us to acts of disbelief. So to understand Islam, you can refer to this book. Hope this helps.
If you want, read As Seerah An Nawawiya, by Ibn Katheer, it's about the Prophet's life. Hope this helps.

Try Harun Yahya, his books are not to heavy but not to light either. On his website he has many free ebooks mashallah Download is free Alhamdullilah.