My first introduction to Buddhism was "Mindfulness in Plain English" by Bhante Henepola Gunaratana. It's not a didactic work, but it more gives you an outline of Buddhism and the framework to experience the various aspects it brings up, namely mindfulness meditation. This book changed my life
I also recommend "Being Nobody, Going Nowhere" by Ayya Khema. She has a very motherly and poignant style. I've found it to be more about the Buddhist way of thought than specifically "Buddhism is X, Y, Z". A very refreshing and wonderful read.
You may find that unlike other religions, most of your discovery in Buddhism will come from reading a hypothesis of sorts, then carrying out the experiment yourself and going, "Holy cow, that is the case and what about this other thing I caught a glimpse of?" then reading more about the other thing you got a hint of and so on. It's really a fascinating journey you're about to undertake
Best of luck to you
Please take the above post with a grain of salt.