[the notes from the book were retrieved with kobogarden, with the purpose of aiding to create a map of the ideas the book left me. The full list of book highlights can be found here.]

I have been (digitally) carrying this book around ever since

The book starts with a short editorial introduction: it is based on talks by Dixon Suzuki (often referred as Suzuki-roshi), which have been edited into the written form with great care. There are a few thoughts on the challenges of the process (some difficulties must also pertain to put into the written form what had at first been just spoken) and a particularly interesting one about the non-non-dualism of English.

In fact, the notion of non-dualism, as important as it is in Buddhist literature, is emphasized in the beginning of the book.

For Zen students the most important thing is not to be dualistic. Our "original mind" includes everything within itself. It is always rich and sufficient within itself. You should not lose your self-sufficient state of mind. This does not mean a closed mind, but actually an empty mind and a ready mind. If your mind is empty, it is always ready for anything; it is open to everything. In the beginner's mind there are many possibilities; in the expert's mind there are few.

About the frontispice of the book, a passage that refers to the (yet undefined) Zen way of doing things, or, rather, of doing, of being in general:

The Zen way of calligraphy is to write in the most straightforward, simple way as if you were a beginner, not trying to make something skillful or beautiful, but simply writing with full attention as if you were discovering what you were writing for the first time; then your full nature will be in your writing. This is the way of practice moment after moment.

Beginner's mind was a favorite expression of Dogen-zenji's. The calligraphy of the frontispiece, also by Suzuki-roshi, reads shoshin, or beginner's mind.