This was the first book I've bought in hardcover in ages.
I'd heard this book contained illustrations, and from experience, I knew illustrations aren't very nice on an E-Reader.
And the illustrations didn't disappoint.
The book consists out of summaries of all the 15 books, and it includes 2 side stories about Skulduggery's background.
For anyone interesting in Skulduggery Pleasant lore, I'd start here.
It's well structured, and the added dialogue from various characters are also amusing (as always).