=head2 Boss/Worker
-The boss/worker model usually has one `boss' thread and one or more
-`worker' threads. The boss thread gathers or generates tasks that need
+The boss/worker model usually has one "boss" thread and one or more
+"worker" threads. The boss thread gathers or generates tasks that need
to be done, then parcels those tasks out to the appropriate worker
thread.
=head2 Semaphores: Synchronizing Data Access
Semaphores are a kind of generic locking mechanism. In their most basic
-form, they behave very much like lockable scalars, except that thay
+form, they behave very much like lockable scalars, except that they
can't hold data, and that they must be explicitly unlocked. In their
advanced form, they act like a kind of counter, and can allow multiple
threads to have the 'lock' at any one time.