Need help with printing a journal!

Hello everyone,

I have been put in charge of creating a journal for our school. We will use a printing company to help create these items.

At the moment, our school is considering two printing companies: SOUBUN and ACCEA. SOUBUN seems to offer much better support, but the cost is quite high. Because of this, it is likely that we will use ACCEA for the first few years of the program.

However, ACCEA does not appear to provide much design or layout support. When I contacted their staff, they explained that the school must submit the printing data:

“We do not provide templates, so we would appreciate it if you could submit your data at the actual size of the desired finished product.

If you wish to print right up to the edge of the paper, please submit your data with bleed added.”

This is where I’m running into trouble as I don’t have much experience preparing print-ready files.
Does this simply mean that I should format everything in A4 size and arrange the pages in the correct order? That seems… quite simplistic? Or are there other things I should be careful about? For example, I have no idea how the cover page formatting works as it will be a color wrap in A3. How do I format the content on the spine…? etc..

If anyone has advice, sample templates for Photoshop/InDesign, guides, or any other helpful resources, I would really appreciate it!
Reference:
ACCEAの学生向け「くるみ製本」で卒業論文を製本して、ジャーナルとして印刷したいと考えていますが、あまり経験がありません。サイズはA4で印刷する予定です。何かアドバイスがあれば教えていただけると助かります。

by japanthrowaway2015