1509.1 (I) Instructional Works
Instructional works include cookbooks, user guides or instructional manuals for a computer program, instructions for using a machine, appliance, or other device, and similar types of works. To register a published instructional work, the applicant generally should submit two copies or phonorecords of the best edition of the work.
By contrast, only one copy or phonorecord is required to register instructions for needlework or a craft kit, regardless of whether the work is published or unpublished. 37 C.F.R. § 202.20 (C) (2) (I)(J).