Less serious side effects may include: 1  mild headache; 2  mild dizziness; 3  sleep problems (insomnia); 4  back pain; 5  nausea, diarrhea, stomach pain; 6  cold symptoms such as stuffy nose, sneezing, sore throat; or. 7  mild skin rash.
The International Standard Book Number (ISBN) is a unique numeric commercial book identifier. An ISBN is assigned to each edition and variation (except reprintings) of a book. For example, an e-book, a paperback and a hardcover edition of the same book would each have a different ISBN.
Reasons to Use Publisher Services for ISBN Assistance. 1  Personal customer service â Talk to a real person â We post our phone number on every page. 2  Authorized ISBN agent â We are, in fact, the largest and personally assist thousands of self-publishers every year.