Victoria & Albert Museum is a great source for collector's books. They team up with publishers to release some really stunning editions. You can usually identify them by the diagonal design on the spines. These Puffin Classics are really fun and come in an awesome rainbow set, which of course I could hardly resist. I hope they add more to the collection!
A Christmas Carol by Charles Dickens ISBN-13: 978-0241334348
The Wind in the Willows by Kenneth Grahame ISBN-13: 978-0141385679
The Jungle Book by Rudyard Kipling ISBN-13: 978-0241359907
The Secret Garden by Frances Hodgson Burnett ISBN-13: 978-0141385501
Anne of Green Gables by L.M. Montgomery ISBN-13: 978-0141385662
Peter Pan by J.M. Barrie ISBN-13: 978-0241359921
Treasure Island by Robert Loius Stevenson ISBN-13: 978-0241359914
Alice's Adventures in Wonderland by Lewis Carroll ISBN-13: 978-0141385655
Little Women by Loiusa May Alcott ISBN-13: 978-0141385587