Offered here:  Who's Who The Definitive Directory of the DC Universe (1985) #21 bought from collector
Graded:  NM
Info: Written primarily by Len Wein and Marv Wolfman (with research by E. Nelson Bridwell and others), Who's Who is a meticulously detailed, alphabetically arranged series of reference volumes that provides personal data, history, and powers and weapons for countless DC characters, both popular and obscure, both new (circa mid 1980s) and old. 
Volume twenty one has entries for Sinestro, Solomon Grundy, the Spectre, Speedy, and many others. Character renderings are by such artistic greats as Gil Kane, Michael Kaluta, Jamie Hernandez, Scott McLeod, and Mike Machlan. FULL DETAIL: 21 - Character/artist listing: Shrinking Violet by Jaime Hernandez; Signalman by Ross Andru and Rick Magyar; Silent Knight by Irv Novick and Bruce Patterson; Silver Deer by Joe Brozowski and Rodin Rodriguez; Silver Ghost by Scott McLeod; Silver Scarab by Mike Machlan and Jerry Ordway; Silver Swan by Bill Sienkiewicz; Sinestro by Gil Kane; Sivana by Kurt Schaffenberger; Sivana Family by Kurt Schaffenberger; Skartaris by ?; Skull by Dan Jurgens and Dave Hunt; Skyman by Tom Grindberg; Slam Bradley by Jim Aparo; Slipknot by Joe Brozowski and Jerry Acerno; Snapper Carr by Joe Brozowski and Bernard Sachs; Solomon Grundy by Murphy Anderson; Sonar by Gil Kane; Son of Vulcan by Ross Andru and Romeo Tanghal; Space Cabbie by Bernard Sachs; Space Museum by Carmine Infantino and Mike DeCarlo; Space Ranger by John Workman and Bob Smith; Spanner's Galaxy by Tom Mandrake; Spawn of Frankenstein by Michael Kaluta; Spectre by Mike Machlan and Jerry Ordway; Speedy I by Eric Shanower; Speedy II by Stan Woch; Spellbinder by Carmine Infantino and Joe Giella; Spider Guild by Kevin O'Neill; Spook by Irv Novick and Bill Wray; Sportsmaster by Chuck Beckum; Stalker by Steve Ditko and Joe Orlando; Star Boy by Greg LaRocque and Joe Rubinstein; Starfinger by Martin King and Dell Barras. Ernie Colon/Dick Giordano cover. 

About me: Selling off some comic books I bought up when I was running an online comic shop. The majority are all new and unread, coming bagged and boarded. Where the book is an older example, so not imported direct to me, this is indicated. I have tried to grade the items fairly but please remember that the grading is my own personal opinion based on thirty years of comic collecting and trading. The photo(s) posted are the actual item so you can see the condition and any obvious defect is shown.

Postage: I do combine postage so wait for an invoice before paying. Single comic books come in an large boarded envelope and multiple issues are sent in 'book wrap mailers'. These can hold up to 10 comics securely. Anything over 10 will go in multiple packages. Please wait for an invoice so I can calculate the postage and packing correctly.