<s>
Programming	B-Application
Languages	I-Application
:	I-Application
Application	I-Application
and	I-Application
Interpretation	I-Application
(	O
PLAI	B-Application
)	O
is	O
a	O
free	O
programming	O
language	O
textbook	O
by	O
Shriram	O
Krishnamurthi	O
.	O
</s>
<s>
PLAI	B-Application
therefore	O
interleaves	O
the	O
two	O
,	O
using	O
the	O
survey	O
approach	O
to	O
motivate	O
ideas	O
and	O
interpreters	O
to	O
understand	O
them	O
.	O
</s>
<s>
The	O
book	O
is	O
accompanied	O
by	O
supporting	O
software	O
that	O
runs	O
in	O
the	O
Racket	B-Operating_System
programming	I-Operating_System
language	I-Operating_System
.	O
</s>
<s>
Since	O
PLAI	B-Application
is	O
constantly	O
under	O
development	O
,	O
some	O
of	O
the	O
newer	O
material	O
(	O
especially	O
assignments	O
)	O
is	O
found	O
on	O
.	O
</s>
<s>
PLAI	B-Application
is	O
also	O
an	O
experiment	O
in	O
publishing	O
methods	O
.	O
</s>
