Iowa Code § 558.60: Transfer and index books.

1. The county auditor shall keep in the county auditor’s office books for the transfer of real estate, which shall consist of a transfer book, index book, and plat book. As used in this context, “book” means the method of data storage and retrieval utilized by the county auditor.

2. The auditor shall index the real estate transfers by block and lot or by township, range, section, section quarter, and subdivision, as occasion may require. The transfer books shall show all of the following:

a. Each grantor.

b. Each grantee.

c. The date of the instrument.

d. The nature of the instrument.

e. The document reference number where the record of the instrument may be found.

f. The description of the real estate conveyed.