"How to Spend Extended Time in Prayer" is an excellent, practical guide.  It’s also brief – edited down from a classic booklet How to Spend a Day in Prayer by Lorne Sanny, also available online.

• How to Spend Extended Time in Prayer
• Day Alone With God (PDF)

Another classic, Charles Hummel’s booklet, The Tyranny of the Urgent, is also available online.  It’s about four pages long.  You could re-read it every year.

• Tyranny of the Urgent (Google Doc)

You can fast without reading books on fasting.  But if you want to read a book on fasting, I would recommend God’s Chosen Fast by Arthur Wallace.  You can find it at Amazon.com for less than ten dollars.  John Piper has also written a book on fasting that gets good reviews – A Hunger for God: Desiring God through Fasting and Prayer. Here are a few books that may be helpful to those who are enjoying the series and want to study further.

• You Can Change: God's Transforming Power for Our Sinful Behavior and Negative Emotions by Tim Chester - Get it on Amazon.com
• The Spirit of the Disciplines by Dallas Willard had a huge impact on me. - Get it on Amazon.com
• The Life You’ve Always Wanted by John Ortberg is “Dallas Willard Lite.” - Get it on Amazon.com
• Celebration of Discipline by Richard Foster - Get it on Amazon.com