# Chapter Nineteen: Using Lightning > :information_source: **NOTE:** This is a draft in progress, so that I can get some feedback from early reviewers. It is not yet ready for learning. In this chapter you'll continue work with the `lightning-cli` command-line interface. You'll create invoices, perform payments, and close channels — all of the major activities for using Lightning. ## Objectives for This Chapter After working through this chapter, a developer will be able to: * Perform payments on the Lightning Network. * Apply closure to a Lightning channel. Supporting objectives include the ability to: * Understand the format of invoices. * Understand the life cycle of Lightning Network payments. * Know how to expand the Lightning Network. ## Table of Contents * [Section One: Generating a Payment Request](19_1_Generate_a_Payment_Request.md) * [Section Two: Paying an Invoice](19_2_Paying_a_Invoice.md) * [Section Three: Closing a Lightning Channel](19_3_Closing_a_Channel.md) * [Section Four: Expanding the Lightning Network](19_4_Lightning_Network_Review.md)