There are many ways to hide and encrypt text in plain sight. A simple way is to perform direct conversion. Similar to how language can be translated, words and text on a computer can be converted to a bunch of numbers using different base systems.
Binary:
01011001 01101111 01110101 00100000 01101101 01110101 01110011 01110100 00100000 01100010 01100101 00100000 01101110 01100001 01101001 01110110 01100101 00100000 01110100 01101000 01101001 01101110 01101011 01101001 01101110 01100111 00100000 01001001 00100000 01110111 01101111 01110101 01101100 01100100 00100000 01101000 01101001 01100100 01100101 00100000 01100011 01101111 01101111 01110010 01100100 01101001 01101110 01100001 01110100 01100101 01110011 00100000 01101000 01100101 01110010 01100101
Decimal
84 104 105 115 32 105 115 32 97 32 68 105 102 102 105 99 117 108 116 121 32 52 46 53 32 112 117 122 122 108 101 44 32 121 111 117 8217 114 101 32 103 111 105 110 103 32 116 111 32 104 97 118 101 32 116 111 32 116 114 121 32 109 117 99 104 32 104 97 114 100 101 114 32 116 104 97 110 32 116 104 105 115 46
Octal
111 146 40 171 157 165 40 153 145 145 160 40 163 145 141 162 143 150 151 156 147 54 40 155 141 171 142 145 40 171 157 165 40 167 151 154 154 40 146 151 156 144 40 164 150 145 40 141 156 163 167 145 162 56
Hex
43 6F 6E 67 72 61 74 75 6C 61 74 69 6F 6E 73 21 20 54 68 65 20 63 6F 6F 72 64 69 6E 61 74 65 73 20 61 72 65 20 6E 6F 74 20 68 65 72 65 2E
Other methods can include things such as encryption. Geocaching uses an atbash to encrypt the hints.
Atbash
Gsv xzxsv xzm yv ulfmw zg Mligs avil gsivv avil hrc wlg hrc hvevm gsivv vzhg lmv sfmwivw zmw lmv gsrigb hvevim wlg hvevm ulfi hvevm
Caesarian Shift
Vs lbh gevrq gur nobir pbbeqvangrf, lbh sryy sbe vg.
Vigenere with itself as a key
D iywhvv cjc zlr gfsmlornxvw vzk ma xymn xgkr.
There are also alphabets that are used less often, such as braille and morse code.
Braille
⠠⠊⠞ ⠊⠎ ⠝⠕⠞ ⠑⠁⠎⠽ ⠃⠥⠞ ⠽⠕⠥ ⠺⠊⠇⠇ ⠋⠊⠝⠙ ⠁ ⠺⠁⠽
Morse Code
.-.. .. -.- . / - .... . -.-- / .- .-.. .-- .- -.-- ... / ... .- -.-- ---... / .-- .- - -.-. .... / - .... .. ... / ... .--. .- -.-. . -.-.--
Now that I've given you the various methods to the madness, see if you can see past the disguises and figure out where the final cache is by reading in between the lines.
01010111 01101000 01100001 01110100
100 111
172 145 142 162 141 163
77 61 6C 72 75 73 65 73
hsziph
naq
kmtkhmew
⠓⠁⠧⠑ ⠊⠝
-.-. --- -- -- --- -.
