5.4 EVALUATING SOURCES FOR RELEVANCEAND RELIABILITYWhen you start looking for sources, you’ll find more than you can use, soyou must quickly evaluate their usefulness. To do so use two criteria:relevance and reliability.5.4.1 Evaluating Sources for RelevanceIf your source is a book, do this:• Skim its index for your keywords, then skim the pages on which those wordsoccur.• Skim the first and last paragraphs in chapters that use a lot of your keywords.• Skim prologues, introductions, summary...