If the intent of a "forklift safety booklet" is to inform, encourage, and/or instruct improved forklift operating, then EVERYTHING worth being said, will naturally fall into one of the three (3) categories of "influence". The three categories are taken from the "performance" literature and are well-known principles to performance engineering practitioners.

For example, the content suggestions from joseph h., "1) STABILITY, 2) Speed, and 3) Pedestrians" fit exactly into the principle of "providing clarity as to EXPECTED ACTIONS". EXPECTED ACTIONS for joseph h's number "1) STABILITY", might specify in the text of the booklet to say, for example, "carry the load as low as possible without scraping the travel surface". Or, it might say, "carry loads ONLY within the rated capacity. or, "BEFORE turning into a blind intersection, dead-stop the forklift". Or, perhaps, Stretch-wrap or band any loose load BEFORE moving it. There are many such examples that could be derived from the others writing their suggestion in this thread. Certainly, you have to agree that such text clearly informs operators of their "EXPECTED ACTIONS" (Statements of "Clear expected actions" being one of the key purposes of a forklift safety booklet).

The reason I suggested that the booklet should also be written to address supervisors and managers is that operators canNOT function well without the others acting on their important roles, too. Most of us already know this. Besides, having the booklet written to address supervision and management would fill the common void of getting everyone to see clearly what is EXPECTED of them BY EACH OTHER...thus helping to ensure that everyone is "cutting the baloney a lot thinner".

The three content items refer to informing the operator, their supervisors, and the managers as to exactly what is EXPECTED to be DONE (ACTIONS).

For principles 2) "resources needed", and number 3) "performance feedback", we could take nearly any content offerings by the other writers of this thread, and derive other specific and useful text for content of a forklift safety booklet.

I hope this is clear enough to be helpful.

Best wishes.