The IES has published ANSI/IES RP-47-23 Recommended Practice: Landscape Lighting. The PDF of RP-47 can be purchased online here at $84 for IES members, and $120 for non-members. The chapters include: 1.0 Introduction and Scope 2.0 Definition of Landscape Lighting 3.0 Landscape Lighting Design Process 4.0 Understanding Nature and Human Interactions With Landscape Lighting [...]