There were 27 titles in the original series “Well Loved Tales” (6O6D, Easy Reading), which were produced between 1964 to 1974 with a hardback matt cover. In 1979 Ladybird began to completely redesigned the series with new illustrations throughout and adding several new stories.
Twinkle was one of my favourite girls comics when I was little, I even named one my two childhood cats after her (the other cat was named “Tammy” after my other favourite comic). Here are all the annual covers from 1970 to 2003. I love the early cover designs best with the plain coloured backgrounds, white circle behind Twinkle and black text.
From time to time I come across old children’s Ladybird books in charity shops, the little hardback ones from the 1960’s-70’s. I recently happened to find a couple from the “Well Loved Tales” series of fairy tales and they reminded me how much I used to love the illustrations.