Judicial pronouncements on issues relating to jurisdiction in Nigeria are on the increase and cases are often lost on jurisdictional grounds, while brief writing becomes herculean in the absence of a resource guide on the citation of authorities and knowing what changes have taken place in the law relating to the jurisdiction of courts in all facets of human endeavour and in respect to cases that find their way to the courts. This book highlights in a simplified manner, judicial pronouncements by the superior courts of records as it relates to issues of Jurisdiction under the Nigerian Law.