There are twenty-two (22) structural devices:
Absence—An intentional omission of scripture indicating something is missing.
Chiasm—An A-B-C-X-C'-B'-A' or A-B-C-C'-B'-A' type of arrangement.
Chiasm (imperfect)—An asymmetric chiasm with an absence, extra, or transposition.
Chiasm substructure—A chiastic-shaped sub-unit of an element—it may be asymmetric.
Closing summary—An emphatic summarization that concludes a basic structure.
Composite—The combination of two or three basic structures within a literary unit.
Extra—An intentional insertion of an element where the corresponding element is blank.
Frame—Two elements with a common theme that surround elements in a structure.
Immediate repetition—An A-A'-B-B' or A-A'-B-B'-C-C' type of arrangement.
Immediate repetition substructure—A sub-unit of an element, shaped like a-a'-b-b'.
List—An A-B-C-D-E or 1-2-3-4-5 type of arrangement.
List substructure—An a-b-c-d-e or 1-2-3-4-5 shaped sub-unit of an element.
Opening summary—An emphatic summarization near the beginning of a literary unit.
Parallel symmetry—A step-like A-B-C-X-A'-B'-C' or A-B-C-A'-B'-C' arrangement.
Parallel symmetry (imperfect)—An asymmetric parallel symmetry with absence, extra, etc.
Parallel symmetry substructure—A step-like sub-unit of an element, may be asymmetric.
Parenthesis—An annotation to the text that explains tangential yet relevant information.
Preliminary—Background information normally located near the beginning of the pericope.
Structure split—The continuation of a literary unit at a later point in the book.
Substructure summary—An opening or closing summarization within a substructure.
Transposition—A re-ordering of elements from their normal sequence.
Variation—When two otherwise corresponding elements have somewhat different themes.