Editions of Six thinking hats

207 pages

English language

Published Feb. 22, 1985 by Little, Brown.

173 pages

English language

Published Feb. 22, 1999 by Back Bay Books.

Hardcover, 207 pages

English language

Published Feb. 22, 1985 by Key Porter Books.

207 pages

English language

Published Feb. 22, 1986 by Viking.

207 pages

English language

Published Feb. 22, 1990 by Penguin.

207 pages

English language

Published Feb. 22, 1985 by The International Center for Creative Thinking.

English language

Published Feb. 22, 1987 by Penguin.