The guide, written by Clear People, a microsoft partner organisation, looks at the different editions of SharePoint 2013 available (including on premises and cloud-based). It advises how to choose best for your organisation and align the product with your overall business and IT strategy. It includes some key advice, practical implementation issues and ends with a 10 point action plan.
Clear People, 2015. Sharepoint 2013 guidelines.
Available to download from the Charity Finance Group web site