<s>
Programming	B-Language
Ruby	I-Language
is	O
a	O
book	O
about	O
the	O
Ruby	B-Language
programming	I-Language
language	I-Language
by	O
Dave	O
Thomas	O
and	O
Andrew	O
Hunt	O
,	O
authors	O
of	O
The	O
Pragmatic	O
Programmer	O
.	O
</s>
<s>
In	O
the	O
Ruby	B-Language
community	O
,	O
it	O
is	O
commonly	O
known	O
as	O
"	O
The	B-Language
PickAxe	I-Language
"	O
because	O
of	O
the	B-Language
pickaxe	I-Language
on	O
the	O
cover	O
.	O
</s>
<s>
The	O
book	O
has	O
helped	O
Ruby	B-Language
to	O
spread	O
outside	O
Japan	O
.	O
</s>
<s>
The	O
second	O
edition	O
,	O
covering	O
the	O
features	O
of	O
Ruby	B-Language
1.8	O
,	O
was	O
published	O
by	O
The	O
Pragmatic	O
Programmers	O
,	O
LLC	O
in	O
2004	O
.	O
</s>
<s>
An	O
updated	O
4th	O
edition	O
covering	O
Ruby	B-Language
1.9	O
and	O
2.0	O
is	O
available	O
.	O
</s>
