Ever since the era of digital books has dawned upon us, offline publishers have been working very hard to come up with creative ideas to sell more books.

Recently we featured an interesting idea of a cookbook that can be read, cooked and served...literally. Then there was this book for adventurers who can eat it in case of an emergency...again, literally!

The book that we are talking about today, has to be read within two months of buying! Else, the words in the book will disappear.