I agree, the Lab annotations book is necessary for the program. But I wanted to add, I got my copy of that book used for $2 through my homeschool group, if you are a part of one perhaps you could try sending out an e-mail to see if anyone has a used one that they would be willing to sell inexpensively to you. The lab annotations book I don't believe has changed much over the years, and I can tell you for a fact that the workbooks look almost exactly like I remembered them from when I was a kid and did Miquon in a private school.