The Flowers of Evil (Les Fleurs de Mal) by Beaudelaire was one of Caine’s favourite books and a special edition of it was gifted to her by Marcus. (stderr) The edition that she received was printed in limited quantities in 1947 with artwork by Beresford Egan and that’s Marcus in the first picture holding a copy of the same book he sent to Caine. The next 2 photos are Marcus displaying 2 of the interior plates to the book. Caine published several illustrations from the book on the blog and always noted how much she enjoyed the exaggerated forms and dark, macabre style of Egan. I’ve included the rest of the illustrations in the book below the fold.
Illustrations via: Retro Sixty, Modern British Art
There are several other editions of this book available to read at The Internet Archive. If you desire to read this edition by Beresford Egan you will need to open an (free) account at The Internet Archive and formally borrow the book.