there are two books by C T Jones on amazon
1.STEP 7 in 7 Steps: A Practical Guide to Implementing S7-300/S7-400 Programmable Logic Controllers
https://www.amazon.com/STEP-Steps-I...+S7-300/S7-400+Programmable+Logic+Controllers
2.STEP 7 Programming Made Easy in LAD, FBD, and STL: A Practical Guide to Programming S7300/S7-400 Programmable Logic Controllers
https://www.amazon.com/STEP-Program...+S7-300/S7-400+Programmable+Logic+Controllers
Are these both similar , I already bought the First one for Book Price: US$ 46.47 Shipping Price: US$ 12.50
should i buy book no 2 also ?
1.STEP 7 in 7 Steps: A Practical Guide to Implementing S7-300/S7-400 Programmable Logic Controllers
https://www.amazon.com/STEP-Steps-I...+S7-300/S7-400+Programmable+Logic+Controllers
2.STEP 7 Programming Made Easy in LAD, FBD, and STL: A Practical Guide to Programming S7300/S7-400 Programmable Logic Controllers
https://www.amazon.com/STEP-Program...+S7-300/S7-400+Programmable+Logic+Controllers
Are these both similar , I already bought the First one for Book Price: US$ 46.47 Shipping Price: US$ 12.50
should i buy book no 2 also ?