How to Break a simple substitution cipher

This video is about how to break a simple substitution cipher. The ciphertext used as an example in this video: G KWTB UNNH NUEWSO BNZB TE BOPB BON VNBBNMT PMN HGTBMGAWBNH GU P IPUUNM BJFGYPV ED BON NUSVGTO VPUSWPSN TE BOPB GB YPU AN AMEQNU WTGUS TBPBGTBGYPV INBOEHT. UNNHVNTT BE TPJ, FPMPSMPFOT BOPB PREGH P FPMBGYWVPM VNBBNM XGVV AN IEMN YEIFVGYPBNH. BON VEUSNM JEWM BNZB, BON IEMN EARGEWT BONTN FPBBNMUT XGVV ANYEIN. DEM NZPIFVN, GD JEW XNMN BE PUPVJTN PU NUBGMN AEEQ, JEW XGVV TNN P RNMJ BJFGYPV HGTBMGAWBGEU. Video on simple substitution cipher: https://youtu.be/uAEZEP_B6Pk Video on Caesar cipher: https://youtu.be/f2CgruPvb9k Link to the letter frequency article on Wikipedia: https://en.wikipedia.org/wiki/Letter_frequency A ciphertext you can try for yourself: IA ZJX'VT GVZIYS GJ FWWNZ GDIL UTGDJM GJ F NFYSXFST GDFG XLTL FY IOJYJSVFWDZ NICT ODIYTLT JV FYM FRXSIMF NICT UJLG LJXGD FLIFY NFYSXFSTL, ZJX'VT JXG JA NXOC. IG IL YTFVNZ IUWJLLIRNT GJ OVTFGT F LIUWNT LXRLGIGXGIJY OIWDTV AJV GDTLT NFYSXFSTL. TBTY IA ZJX OJXNM, GDTVT KJXNM RT LJ UFYZ LZURJNL WVTLTYG GDFG F BTVZ NJYS GTPG KJXNM RT YTTMTM IY JVMTV GJ LTT FYZ LGFGILGIOFNNZ LISYIAIOFYG BFVIFGIJY IY NTGGTV AVTHXTYOZ.