Arnold Bennett's book "How to Live on 24 Hours a Day" is an excellent piece of classic work. Arnold Bennett was a popular English novelist in the late 1800's and early 1900's. This book contains timeless advice about squeezing the most out of everyday life. Everything from training your brain to concentrate to living happily is discussed in full. The book is short enough to be read in an hour or two (around 80 pages in length), and contains sufficient humor and conversational tone to make the read extremely enjoyable. If you're looking for practical life advice to help improve your daily quality of life, you will find no better book than this.