The Whitepages, which follow the Bluepages, are mostly intended for use in law journals. That qualifier "mostly" is there because the rules in the Bluepages often refer to the Whitepages for the full rule. Therefore, you will not be able to ignore the Whitepages just because you're not on a journal.
The rules in the Whitepages are usually abbreviated using the letter R. ex. R12.4 is the rule for citing session laws.
Rule 1 tells you where to put citations, and the nitty gritty rules for citing particular authorities begin with Rule 10 for cases. What's in between are the style rules. These rules apply to everything in the Whitepages.
It pays to know these rules, or at least know where they are, before you jump into the authority-specific rules.
R2 Typefaces for Law Reviews
R3 Subdivisions (citing parts of larger works)
R4 Short Citation Forms
R5 Quotations
R6 Abbreviations, Numerals, and Symbols
R7 Italicization for Style and in Unique Circumstances
R8 Capitalization
R9 Titles of Judges, Officials, and Terms of Court
The Bluebook uses four different typefaces:
The rules for when you use each one in citations is summarized below: (from R2.1)
Italicize or underscore:
Large and Small Caps used for authors and titles of books, titles of periodicals
Everything else should be in ordinary roman
Textual material (the actual text of your piece, as opposed to the citations) only uses ordinary roman and italics. See R2.2.
In academic legal writing, law journals, citations are placed in footnotes. For a detailed discussion on where to place the numbers for your footnotes, see R1.1(a).
Within those footnotes, citations are made in citation sentences and clauses.
Citation sentence: to cite support for the entire preceding sentence.
ex. The law may not block one group of citizens from access to government assistance.¹
¹Romer v. Evans, 517 U.S. 620, 633 (1996).
Citation clause: to cite support for only part of a sentence.
ex. The Supreme Court once declared separate but equal constitutional,² but declared it unconstitutional nearly a century later.³
²Plessy v. Ferguson, 163 U.S. 537 (1896).
³Brown v. Bd. of Educ., 347 U.S. 483 (1954).