pythonで複数のcsvを統合

ビッグデータ解析の前準備として、複数のCSVデータを統合し、たとえばタイムスタンプで複数データを同期して整列整行することがあると思うのですが、推奨方法があれば教えてください。

また、https://qiita.com/minamini1985/items/60047ea416cd49721cf3　にある方法でやってみたのですが、下記エラーが出ます。基本が不足しているせいで解読できません。ご教示お願い致します。

　UnicodeDecodeError Traceback (most recent call last)
<ipython-input-7-721da733a6a3> in <module>()
11
12 for file in csv_files:
---> 13 data_list.append(pd.read_csv(file))
14
15 df = pd.concat(data_list, axis=0, sort=True)

~\Anaconda3\lib\site-packages\pandas\io\parsers.py in parser_f(filepath_or_buffer, sep, delimiter, header, names, index_col, usecols, squeeze, prefix, mangle_dupe_cols, dtype, engine, converters, true_values, false_values, skipinitialspace, skiprows, nrows, na_values, keep_default_na, na_filter, verbose, skip_blank_lines, parse_dates, infer_datetime_format, keep_date_col, date_parser, dayfirst, iterator, chunksize, compression, thousands, decimal, lineterminator, quotechar, quoting, escapechar, comment, encoding, dialect, tupleize_cols, error_bad_lines, warn_bad_lines, skipfooter, doublequote, delim_whitespace, low_memory, memory_map, float_precision)
676 skip_blank_lines=skip_blank_lines)
677
--> 678 return _read(filepath_or_buffer, kwds)
679
680 parser_f.name = name

~\Anaconda3\lib\site-packages\pandas\io\parsers.py in _read(filepath_or_buffer, kwds)
438
439 # Create the parser.
--> 440 parser = TextFileReader(filepath_or_buffer, **kwds)
441
442 if chunksize or iterator:

~\Anaconda3\lib\site-packages\pandas\io\parsers.py in init(self, f, engine, **kwds)
785 self.options['has_index_names'] = kwds['has_index_names']
786
--> 787 self._make_engine(self.engine)
788
789 def close(self):

~\Anaconda3\lib\site-packages\pandas\io\parsers.py in _make_engine(self, engine)
1012 def _make_engine(self, engine='c'):
1013 if engine == 'c':
-> 1014 self._engine = CParserWrapper(self.f, **self.options)
1015 else:
1016 if engine == 'python':

~\Anaconda3\lib\site-packages\pandas\io\parsers.py in init(self, src, **kwds)
1706 kwds['usecols'] = self.usecols
1707
-> 1708 self._reader = parsers.TextReader(src, **kwds)
1709
1710 passed_names = self.names is None

pandas_libs\parsers.pyx in pandas._libs.parsers.TextReader.cinit()

pandas_libs\parsers.pyx in pandas._libs.parsers.TextReader._get_header()

UnicodeDecodeError: 'utf-8' codec can't decode byte 0x95 in position 2: invalid start byte