Kiesling succeeds in beginning most chapters with guiding, thought-provoking questions, outlining topics discussed in previous sections or chapters, presenting what will be discussed subsequently, and linking the previous and forthcoming theories or concepts together. He also explains findings and conclusions in technical and plain language and buttresses complex ideas with helpful examples that are sometimes related to personal hypothetical situations… This book will be particularly fitting as a textbook for introducing graduate students to linguistic variation for the first time.