Errata

p.9, ¶2: for "can compared", read "can be compared". (Thanks to Antonio Macías Ojeda, 2015-10-22.)

p.13: As printed, the gopl.io/ch1/lissajous program is deterministic, not random. We've added the statement below to the downloadable program so that it prints a pseudo-random image each time it is run. (Thanks to Randall McPherson, 2015-10-19.)

rand.Seed(time.Now().UTC().UnixNano())

p.52, ¶2: for "an synonym", read "a synonym", twice.

p.68: the table of UTF-8 encodings is missing a bit from each first byte. The corrected table is shown below. (Thanks to Akshay Kumar, 2015-11-02.)

0xxxxxxx                             runes 0−127     (ASCII)
110xxxxx 10xxxxxx                    128−2047        (values <128 unused)
1110xxxx 10xxxxxx 10xxxxxx           2048−65535      (values <2048 unused)
11110xxx 10xxxxxx 10xxxxxx 10xxxxxx  65536−0x10ffff  (other values unused)

p.74: the comment in gopl.io/ch3/printints should say fmt.Sprint, not fmt.Sprintf.

p.76: the comment // "time.Duration 5ms0s should have a closing double-quotation mark.

p.79, ¶4, "When an untyped constant is assigned to a variable, as in the first statement below, or appears on the right-hand side of a variable declaration with an explicit type, as in the other three statements, ..." has it backwards: the first statement is a declaration; the other three are assignments. (Thanks to Yoshiki Shibata, 2015-11-09.)