Very Good Condition for this small hdbk mathematics book.  Cover shows some fading of spine lettering, but otherwise just slight bumping of corners/spine-ends.  Hinges/binding are tight/strong.  No clear age-tanning to paper.   Faint owner name inside.  Small pen mark found only on p. 87.  Otherwise, interior is clean...no tears, folds, stains, marks, nor foxing found.  No DJ.  Sturdy enough for normal use.  Collectible.