was Ladybird's first series to look at people and the work
they do. The first 6 titles were issued with dust-wrappers.
Books in series 606b -
There were 20 titles published in this series between 1940
and 1980 inclusive. All entries below describe the first edition
of each title.
In 2004 a first edition Ladybird book from series 413 entitled 'Baby's First Book' sold on eBay for £352.00