I have played the trumpet, as an enthusiastic, largely self-taught amateur, for many years and own a whole variety of trumpet tutor books; most are incredibly daunting, immediately too demanding and are, all-in -all, not much fun!
This book is quite different - it has a very attractive, friendly approach, is extremely well presented (although I do wish it had been spirally bound), deals with all the basics and more and has plenty of tips and simple, attractive 'how to do,' 'how to approach' ideas. The book is thorough and covers all the basic techniques of playing and the usual pitfalls and problems, but in an attractive, friendly way. There are also, within its pages, pentatonic chord charts, listening suggestions, further sources of study and music, suggested practice routines and charts etc. and even instructions on how to correctly clean and maintain the instrument!
This book will be useful to both the beginner and the more experienced player, is excellent value, and I give it my highest recommendation, but do so wish that it had been in print 30 years ago!!