For Odom's books, the 200-125 Cert Guide Library is just the two physical books for ICND1 and ICND2 - there's no single volume that contains both.
For Lammle's, the 200-125 book is the content from the individual exam books just placed one after the other; there's no additional content in either case.
i am using Lammle's 200-125 for ICND1-he specifys what chapters to use for ICND1.
That's weird, mine has it one book after the other. What version do you have?
the second edition
Or does the specific Icnd1 and icnd2 books have more information in their own books