Adults or older beginners will benefit so much from playing a musical instrument, that's why I recommend taking up music lessons or even self-studying at home. Perhaps you're thinking you're too old for this, nothing can be farther from the truth. Nobody's too old to learn something new and learning to play a music instrument is no exception. Here are some great beginning method books to get you started. Books listed here will benefit you more if you're taking formal lessons.
Kids and adults will benefit from this popular method book. This is under Hal Leonard's Learn to Play Series and is a favorite of many clarinet teachers. This instructional book presents the lessons progressively and has a fingering chart to further guide the students.
Written by Hyacinthe Klose, this book covers the technical aspects of clarinet playing, rhythm, articulation, chord practice and more. There are hundreds of invaluable lessons to help beginning clarinetists become more skilled players. Some beginning students may find this book a bit difficult as it progresses faster than other books.
This is volume 1 of the Gustave Langenus Clarinet Method volumes and is one of the oldest clarinet method books in print. Teaches the basic concepts of clarinet playing and has a detailed fingering chart to guide students.
By Carl Baermann, this is another popular clarinet method book. Although a little more advanced than the other books, this will be a great supplement for students who have already started playing the clarinet but needs to hone their skills and be challenged.
Written by H. Lazarus and published by Carl Fisher. This book is the first of three volumes and the lessons are lighter and move in a slower pace than the other method books.