I would not recommend this as a first book. I started in Chapter One and the author's proofs seem sometimes too terse and sometimes confusing to me. Another drawback to this book is that it has no answers to the exercises.
There are some good written introductory books. It depends on your goals. Books like Foundations of Geometry (Dover Books on Mathematics) (has no solutions to the exercises that I know) by Wylie. The more I read this book, the more and more I am coming to like Geometry and appreciate the subject. Another nice first book to study alongside Wylie's is Euclidean Geometry and Transformations (Dover Books on Mathematics) by Dodge which has hints and answers, but seems more advanced than Wylie. Wylie's is an axiomatic approach, and I'm liking Wylie's book much more than Dodge's, but Dodge seems more of an analytic and algebraic approach to Euclid. Wylie's other book Introduction to Projective Geometry (Dover Books on Mathematics) (has answers in back to odd exercises I believe) is analytic and algebraic and is not like the "Foundations" book in writing and clarity. It is an advanced text and you will need some mathematical maturity and experience I think to study it even though it has "Introduction" in the Title. It's nice to "shift gears" and go back and forth between the two approaches, axiomatic and analytic/algebraic, since they are complementary. Also Modern Geometries by Smart or Geometry by Brannan. Both these books are pretty good but more expensive. You can get used ones, even the Dover books, for a good price or an older edition. Afterward, try Geometry Revisited (Mathematical Association of America Textbooks) (has hints and answers), or Pedoe's as a second book. The books from Dover seem inexpensive whereas Smart's and Brannan's books are $50.00 to $200.00 new in price, that is one reason I like Dover books and they are well known scholarly books. However, some are better written and pedagogically friendlier than others. You can preview most of them on Google or at Dover to see if you like the Author's style and writing/communication skills. Pode's at my first encounter, seemed lacking in clear communication, especially the proofs. Wylie's proofs are more detailed and clear, but you will still need to give your rapt attention to follow the proofs and use pencil and paper at times. Many of the exercises are writing proofs of the Theorems in the text, which could explain why there are no answers. Brannan's book has worked-out solutions to most of the Problems in the chapters but none for the end of chapter exercises. Smart's has answers too. One thing I do like about Pedoe's book is that it has an introductory chapter to algebraic geometry. Perhaps this book would be good for some as a second or third book.
Coxeter's books Introduction to Geometry (Wiley Classics Library) and Geometry Revisited (Mathematical Association of America Textbooks) are very difficult in many ways and hard to comprehend at times. Being a Russian textbook, its level of "Introductory" and "Elementary" is not the same as in the USA or some other countries. However, "Introduction" is a classic Geometry book as is the "Revisited" book for advanced study. I would start with the "Revisited" book before his "Intro" book. They are advanced books in my view and may be a good second or third book. "Revisited" may be good for a Secondary Mathematics Teacher looking for an advanced treatment of their level of Geometry. Yet the books cited above do just as well and are more student friendly. Coxeter's books are written for those who plan to go on in advanced study of mathematics or competitions, especially the "Revisited" book which seems to be all theory and proof, quite rigorous though it claims to be elementary. So it is limited in its scope in my view, with much "holding of the breath" needed and time to work out the extremely challenging exercises at times. Not something really for someone who wants to be practical, concrete, and remain at an advanced secondary school level.
Of course, starting from the very beginning, the study of Euclid's Elements is good because the books cited above assume the reader knows Euclid's Elements. There are some good books on this as well. Dover has all thirteen books in three volumes. But there are some recent books available that are acclaimed: Euclid's Elements of Geometry has helpful notes and is a bilingual Greek/English text. Euclid's Elements which is a reasonably priced book and highly acclaimed. Wylie's "Foundations" book cited above, is an axiomatic treatment of Euclid and non-Euclidean geometry, a nice first book. Hilbert's Foundations of Geometry book is a classic, but I am not sure if it would be a good first book.
Do some shopping: there are many geometry books, even advanced ones to sample. Pick one that fits your needs and goals that you can learn from and that is not just pompous.