This document provides advice on selecting and implementing an electronic laboratory notebook (ELN). It discusses that the needs will vary depending on whether a company is regulated, the industry, and whether work is more chemistry or biology focused. For chemistry, a chemistry-centric ELN can be selected, while for biology the goal is to get the tool out of their way. Large chemical companies have diverse needs that may be difficult to fully understand. The document emphasizes understanding current workflows before selecting a tool and avoiding overcomplex security and records management systems.