I agree that a good collection of books are good sources ............but you can get along pretty well and start in the Internet. In the last year I have found all the information I needed for three models I am currently making. Last year I did not buy a book!!!!!....so don´t let the lack of "specialized" books block you from scratchbuilding!!!! please............
I suppose the Internet will be the main supplier of all kind of info in the next decade. I have been modelling for over 45 years and if I had the internet 20 years ago, as it is today, I would have saved me a lot of money.
What do you want to scratchbuild???? exactly.........For scratchbuilding you have to "set your mind to it". By that I mean, after getting all possible references of the subject in the way of History of it, photos (as much as possible), a good plan (sometimes there is none so you either draw it yourself or do the model by using other methods to get the scale) and..............start to see "everything" as possible materials..paper, card, pins, wire, cork, plaster, etc.......
As you become more experienced you will find that eventually "there is no subject..."that´s too difficult!!!"..and you can scratcbuild any aircraft or whatever you desire"....and materials for it abounds all over......
Get started right away...find what you can in the net and start working, after all if you don´t get it right the first time ( which you probably will not) you can do it as many times as you desire, there is no need to buy another kit!!!!!!..............
Welcome to scratchbuilding...............1.....2.....3..........GO!!!!!
OH Yea!!!!...Skill, none of us had "Skill" when we started, you aquire that by practise,
practise, and more practise.......those that tell you they had the "skill" to make scratchbuilt models from the outset are from planet Gooney!!!!!!!!!!!!......
From " From Wikipedia, the free encyclopedia"
A
skill is an
ability, usually learned and acquired through training, to perform actions which achieve a desired outcome.