A sympathetic and detailed account of his life and work in Ukrainian written by a professional geographer.

The term is not new, and well accepted even by professional geographers.

These theories are speculative but perhaps less so than Strabo's contention that Pytheas was a charlatan just because a professional geographer doubted him.

The Society's Research and Study Groups bring together active researchers and professional geographers in particular areas of geography.

He studied under Richard Hartshorne, the first professional geographer he had ever met.

Focus is edited and written by academic and professional geographers and includes theme sections; maps and photos; and special country issues.

"The definitions have been reviewed for accuracy by professional geographers," Barry Lopez writes in his introduction, "but the writers' intent was not to be exhaustive, let alone definitive."

In geography lessons, for example, pupils could access the specialised software and tools used by professional geographers, allowing them to tackle more challenging and interesting work.

Robin Stirling is a professional geographer and teacher.

John Mitchell was not a professional geographer or map maker.