Since his first book in 1958 , his work has since appeared in over 100 books .
Gillmor 's output has been enormous and in a variety of forms , line drawing watercolour , lino - cuts and silk screen .
Since Gillmor 's first book in 1958 , Gillmor 's work has since appeared in over 100 books .
Gillmor 's output has been enormous and in a variety of forms , line drawing watercolour , lino - cuts and silk screen .