POH
The possesion of the POH is of course a requirement of the C of A and invalidates the C of A if it is lost. So, it is treated like gold. Part of every pilots training must include reference to the POH and where to find info as with the AIP, ANO, AIC's and Notams etc.
Some manuals on older types are not a bound item but an assortment of papers found in a binder that requires particular care and protection from careless marauding hands - but just the same MUST always be available to every pilot.
All of our checklists are produced by ourselves for a particular aeroplane, none are generic. The checklists contain from the manual - actual copies where possible of performance data; TO run/TO distance tables, climb, cruise, descent and landing data, W & B and emergency procedures - nothing may be included that is at odds with the manual. Where the POH makes no specific recommendation then the CAA safety factor figures are used.
Carb icing is of course IMPORTANT but that is not to ignore the dangers of an engine running rich! Over use of carb heat with many installations may lead to rough running (so lack of power)and even to a rich cut when aggravated by a hot summers day. Knowledgable use of the mixture is also part of the engine management scenario. Carb icing should not be briefed in isolation to the full story