8 deleted 3 characters in body
source | link

There are already very good answers(it may be a summary), but I thought of adding mine(may very little additions though, but helpful for future visitors).
This contains some good video lectures(it is helping me a lot, after Mathematica Stack Exchange(constant helper)). Even I have downloaded all the videos(for future learning, and passing them to my friends). Here, the introduction is bit general(basic). It assumes that the viewers have no background in Mathematica.

(i*) Mathematica - 1 Similarly you can check for more lectures Perimeter Mathematica Lectures(pain stacking to write all the links).

(ii) Another by Piedro Viera, just scroool to the bottom to Mathematica - Pedro Vieira.

(iii**) Now time for-> Wonderful: Wolfram: The Mathematica Book, Fifth Edition, this book is by Wolfram itself. Please use Google Translate for this reference Mathematica(Wolfram book link), sorry:).

(iv*)Obviously, Mathematica Programming: An Advanced Introduction, this my most of the time good lookup. Thanks to @Chris(who has mentioned it).

(v*) Beautiful link by @C.E. Wolfram Language: Fast introduction for programmers, this link was first given to me when I joined MMSE.

Regarding time, I can't say. I am sorry(it depends on your background, the amount of material you want to learn and your grasping power :) ).

There are already very good answers(it may be a summary), but I thought of adding mine(may very little additions though, but helpful for future visitors).
This contains some good video lectures(it is helping me a lot, after Mathematica Stack Exchange(constant helper)). Even I have downloaded all the videos(for future learning, and passing them to my friends). Here, the introduction is bit general(basic). It assumes that the viewers have no background in Mathematica.

(i*) Mathematica - 1 Similarly you can check for more lectures Perimeter Mathematica Lectures(pain stacking to write all the links).

(ii) Another by Piedro Viera, just scroool to the bottom to Mathematica - Pedro Vieira.

(iii**) Now time for-> Wonderful: Wolfram: The Mathematica Book, Fifth Edition, this book is by Wolfram itself. Please use Google Translate for this reference Mathematica(Wolfram book link), sorry.

(iv*)Obviously, Mathematica Programming: An Advanced Introduction, this my most of the time good lookup. Thanks to @Chris(who has mentioned it).

(v*) Beautiful link by @C.E. Wolfram Language: Fast introduction for programmers, this link was first given to me when I joined MMSE.

Regarding time, I can't say. I am sorry(it depends on your background, the amount of material you want to learn and your grasping power :) ).

There are already very good answers(it may be a summary), but I thought of adding mine(may very little additions though, but helpful for future visitors).
This contains some good video lectures(it is helping me a lot, after Mathematica Stack Exchange(constant helper)). Even I have downloaded all the videos(for future learning, and passing them to my friends). Here, the introduction is bit general(basic). It assumes that the viewers have no background in Mathematica.

(i*) Mathematica - 1 Similarly you can check for more lectures Perimeter Mathematica Lectures(pain stacking to write all the links).

(ii) Another by Piedro Viera, just scroool to the bottom to Mathematica - Pedro Vieira.

(iii**) Now time for-> Wonderful: Wolfram: The Mathematica Book, Fifth Edition, this book is by Wolfram itself. Please use Google Translate for this reference Mathematica(Wolfram book link), :).

(iv*)Obviously, Mathematica Programming: An Advanced Introduction, this my most of the time good lookup. Thanks to @Chris(who has mentioned it).

(v*) Beautiful link by @C.E. Wolfram Language: Fast introduction for programmers, this link was first given to me when I joined MMSE.

Regarding time, I can't say. I am sorry(it depends on your background, the amount of material you want to learn and your grasping power :) ).

7 added 9 characters in body
source | link

There are already very good answers(it may be a summary), but I thought of adding mine(may very little additions though, but helpful for future visitors).
This contains some good video lectures(it is helping me a lot, after Mathematica Stack Exchange(constant helper)). Even I have downloaded all the videos(for future learning, and passing them to my friends). Here, the introduction is bit general(basic). It assumes that the viewers have no background in Mathematica.

(i*) Mathematica - 1 Similarly you can check for more lectures Perimeter Mathematica Lectures(pain stacking to write all the links).

(ii) Another by Piedro Viera, just scroool to the bottom to Mathematica - Pedro Vieira.

(iii**) Another wonderfulNow time for-> Wonderful: Wolfram: The Mathematica Book, Fifth EditionWolfram: The Mathematica Book, Fifth Edition, this book is by Wolfram itself. Please use Google Translate for this reference Mathematica(Wolfram book link), sorry.

(iv*)Obviously, Mathematica Programming: An Advanced Introduction, this my most of the time good lookup. Thanks to @Chris(who has mentioned it).

(v*) Beautiful link by @C.E. Wolfram Language: Fast introduction for programmers, this link was first given to me when I joined MMSE.

Regarding time, I can't say. I am sorry(it depends on your background, the amount of material you want to learn and your grasping power :) ).

There are already very good answers(it may be a summary), but I thought of adding mine(may very little additions though, but helpful for future visitors).
This contains some good video lectures(it is helping me a lot, after Mathematica Stack Exchange(constant helper)). Even I have downloaded all the videos(for future learning, and passing them to my friends). Here, the introduction is bit general(basic). It assumes that the viewers have no background in Mathematica.

(i*) Mathematica - 1 Similarly you can check for more lectures Perimeter Mathematica Lectures(pain stacking to write all the links).

(ii) Another by Piedro Viera, just scroool to the bottom to Mathematica - Pedro Vieira.

(iii**) Another wonderful: Wolfram: The Mathematica Book, Fifth Edition, this book is by Wolfram itself. Please use Google Translate for this reference Mathematica(Wolfram book link), sorry.

(iv*)Obviously, Mathematica Programming: An Advanced Introduction, this my most of the time good lookup. Thanks to @Chris(who has mentioned it).

(v*) Beautiful link by @C.E. Wolfram Language: Fast introduction for programmers, this link was first given to me when I joined MMSE.

Regarding time, I can't say. I am sorry(it depends on your background, the amount of material you want to learn and your grasping power :) ).

There are already very good answers(it may be a summary), but I thought of adding mine(may very little additions though, but helpful for future visitors).
This contains some good video lectures(it is helping me a lot, after Mathematica Stack Exchange(constant helper)). Even I have downloaded all the videos(for future learning, and passing them to my friends). Here, the introduction is bit general(basic). It assumes that the viewers have no background in Mathematica.

(i*) Mathematica - 1 Similarly you can check for more lectures Perimeter Mathematica Lectures(pain stacking to write all the links).

(ii) Another by Piedro Viera, just scroool to the bottom to Mathematica - Pedro Vieira.

(iii**) Now time for-> Wonderful: Wolfram: The Mathematica Book, Fifth Edition, this book is by Wolfram itself. Please use Google Translate for this reference Mathematica(Wolfram book link), sorry.

(iv*)Obviously, Mathematica Programming: An Advanced Introduction, this my most of the time good lookup. Thanks to @Chris(who has mentioned it).

(v*) Beautiful link by @C.E. Wolfram Language: Fast introduction for programmers, this link was first given to me when I joined MMSE.

Regarding time, I can't say. I am sorry(it depends on your background, the amount of material you want to learn and your grasping power :) ).

6 added 1 character in body
source | link

There are already very good answers(it may be a summary), but I thought of adding mine(may very little additions though, but helpful for future visitors).
This contains some good video lectures(it is helping me a lot, after Mathematica Stack Exchange(constant helper)). Even I have downloaded all the videos(for future learning, and passing them to my friends). Here, the introduction is bit general(basic). It assumes that the viewers have no background in Mathematica.

(ii*) Mathematica - 1 Similarly you can check for more lectures Perimeter Mathematica Lectures(pain stacking to write all the links).

(ii) Another by Piedro Viera, just scroolscroool to the bottom to Mathematica - Pedro Vieira.

(iiiiii**) Another wonderful: Wolfram: The Mathematica Book, Fifth Edition, this book is by Wolfram itself. Please use Google Translate for this reference Mathematica(Wolfram book link), sorry.

(iviv*)Obviously, Mathematica Programming: An Advanced Introduction, this my most of the time good lookup. Thanks to @Chris(who has mentioned it).

(vv*) Beautiful link by @C.E. Wolfram Language: Fast introduction for programmers, this link was first given to me when I joined MMSE.

Regarding time, I can't say. I am sorry(it depends on your background, the amount of material you want to learn and your grasping power :) ).

There are already very good answers(it may be a summary), but I thought of adding mine(may very little additions though, but helpful for future visitors).
This contains some good video lectures(it is helping me a lot, after Mathematica Stack Exchange(constant helper)). Even I have downloaded all the videos(for future learning, and passing them to my friends). Here, the introduction is bit general(basic). It assumes that the viewers have no background in Mathematica.

(i) Mathematica - 1 Similarly you can check for more lectures Perimeter Mathematica Lectures(pain stacking to write all the links).

(ii) Another by Piedro Viera, just scrool to the bottom Mathematica - Pedro Vieira.

(iii) Another wonderful: Wolfram: The Mathematica Book, Fifth Edition, this book is by Wolfram itself. Please use Google Translate for this reference Mathematica, sorry.

(iv)Obviously, Mathematica Programming: An Advanced Introduction, this my most of the time good lookup. Thanks to @Chris(who has mentioned it).

(v) Beautiful link by @C.E. Wolfram Language: Fast introduction for programmers, this link was first given to me when I joined MMSE.

Regarding time, I can't say. I am sorry(it depends on your background, the amount of material you want to learn and your grasping power :) ).

There are already very good answers(it may be a summary), but I thought of adding mine(may very little additions though, but helpful for future visitors).
This contains some good video lectures(it is helping me a lot, after Mathematica Stack Exchange(constant helper)). Even I have downloaded all the videos(for future learning, and passing them to my friends). Here, the introduction is bit general(basic). It assumes that the viewers have no background in Mathematica.

(i*) Mathematica - 1 Similarly you can check for more lectures Perimeter Mathematica Lectures(pain stacking to write all the links).

(ii) Another by Piedro Viera, just scroool to the bottom to Mathematica - Pedro Vieira.

(iii**) Another wonderful: Wolfram: The Mathematica Book, Fifth Edition, this book is by Wolfram itself. Please use Google Translate for this reference Mathematica(Wolfram book link), sorry.

(iv*)Obviously, Mathematica Programming: An Advanced Introduction, this my most of the time good lookup. Thanks to @Chris(who has mentioned it).

(v*) Beautiful link by @C.E. Wolfram Language: Fast introduction for programmers, this link was first given to me when I joined MMSE.

Regarding time, I can't say. I am sorry(it depends on your background, the amount of material you want to learn and your grasping power :) ).

5 added 12 characters in body
source | link
4 added 12 characters in body
source | link
3 added 125 characters in body
source | link
2 added 347 characters in body
source | link
1
source | link