Prayer is a central part of the Christian life, and so why not learn more about it? Here are a couple excellent, and short, resources that can help you do that!
If you’re looking for a different way to pray than the ACTS method, Donald Whitney wrote this short and profound book which introduces a simple and powerful way to pray through Bible passages, especially the Psalms. It’s such an excellent book that we highly recommend you buy a copy and use it to help you.
Michael Reeves packs a great deal of insight and depth into this very short meditation on prayer. It is a very easy read and could be used as a devotional.