The Council of State Governments keeps state officials connected and up-to-date on the issues through a variety of publications. The Book of the States, published since 1935, is a reference tool of choice and includes comparative information on everything from highway miles to state government employment and everything in between. Capitol Ideas provides analyses of current issues and a look inside current trends. Its sister publication—Capitol Ideas e-newsletter—provides an in-depth look on how current events will affect state governments. State Directories published by CSG includes the names and contact information for key state government officials.