This was the book our professor recommended for my first course in assembly language programming for the Motorola 68000 microprocessor. I don't think this book is very suitable for an introduction. I found it heavy going, at first. If I had more experience think I think it may have been OK.
Instead I found myself referring to the books on the 68000 by Alan Clements and the other book by James Antonakas. I found these texts very clear and worthwhile; written in a style better tailored for beginners.