Karl Sigmund has a book on the Vienna Circle (to accompany the wonderful Vienna Circle exhibition this Fall for the University of Vienna’s 650th anniversary).
Sie nannten sich Der Wiener Kreis:Exaktes Denken am Rand des Untergangs is an accessible introduction to the history and context of the Vienna Circle. You may not need such an introduction, but you will appreciate the pictures!
The book is up for an award on scientific writing: vote for Sigmund’s book here (in the section “Naturwissenschaft und Technik”).
Nice, finally a page allowing to vote without registration and other annoyances!