A number of years ago I developed a simple rhyme for the book of Habakkuk.It was Q – A, Q – A, OK. The "Q" relates to the questions of the prophet and the "A" to God's answers. The "OK" relates to the psalm that closes the book, especially 3:16-19. I have found that this rhyme helps people remember the book. Here is a simple synthetic chart that I have used as well.