For example, the text uses no hyphen on "today" while one of the captions does hyphenate it.
hyphenate the first two words (they really stand for one idea).
Frequently the printer made an mistake and forgot to hyphenate all or part of a word.
Index entries tend to not hyphenate words that are unhyphenated in the text.
hyphenate compounds of life and world; life-history, world-influence, but (by exception) lifetime.
hyphenate compounds of great in phrases indicating degrees of descent; great-grandmother, great-great-grandfather.
hyphenate compounds of master; master-builder, master-stroke, but (by exception) masterpiece.
hyphenate compounds of god when this word forms the second element; sun-god, war-god, godsend, godson.