Albeit about C++, Stroustrup's "D&E of the C++ programming language" has a chapter which still is timeless and valuable source about exceptions and fault-tolera

Albeit about C++, Stroustrup's "D&E of the C++ programming language" has a chapter which still is timeless and valuable source about exceptions and fault-tolerance. The model that all of a program is treated as "try" block is equivalent of treating all code as part of fault-tolerance solution. As Stroustrup puts it nicely, not all methods should be firewalls against errornous conditions, as error handling in itself adds to the complexity of the program.