Copyediting
Copyediting is the last step of the manuscript preparation process, correcting the manuscript so that it conforms to generally-accepted industry guidelines for formatting, grammar, spelling, and punctuation. (Chicago Manual of Style, unless otherwise specified.)

Substantive Editing
Substantive editing (aka line editing) is a more in-depth edit of the manuscript. Close attention is paid to structural elements (for nonfiction, organization and argument; for fiction, narrative flow) and language, including grammar, syntax, and style.  

Developmental Editing
Developmental editing is essentially manuscript critique with an editing component. First, the manuscript is assessed, paying particular attention to structural elements (for nonfiction, organization, argument, tone, and content; for fiction, plot, character, point of view, and pacing.) A set of comments and suggestions is prepared. After the writer revises, a full line edit is done. 

Editing services generally run .50 to $4 per page, depending on the level of editing a manuscript requires and the turn-around time expected. I am happy to do a free sample edit (up to 5 pages). And I always prepare a full price quote before starting work.

Research
Online. And in D.C. institutions such as the Library of Congress, the National Archives, and the Folger Library. 

Writing
Nonfiction. Articles, book proposals, queries, and full-length manuscripts. 

Crossword Construction
Published crossword constructor.