Making use of reference materials for writing.

Know which materials to use. There are many Japanese dictionaries, grammar books, and kanji references available both in print and online. Find out which ones are recommended for intermediate to advanced learners.
Always have a reliable bilingual dictionary. This is essential for understanding the nuances and context of words and phrases.
Make full use of a Kanji dictionary like the Nelson or Kodansha dictionary, especially designed for foreign learners. They provide stroke order, readings, meanings, and compounds for each kanji.
Use digital tools for quick lookups and supplementary materials. Apps like Jisho, Tae Kim’s Grammar Guide or online glossaries can be handy for all types of reference needs.

Learn how to search effectively. Successful use of resources, especially online reference libraries, requires you to master searching through the available data.
Use a thesaurus or specialized dictionary to diversify your vocabulary. This can lead to richer, more varied written expression.
Use model essays, letters, and texts to learn new structures. Examples found in reference texts can often provide guidance on writing style and organisation.

Refer to grammar books and usage guides regularly. Ensure foundational knowledge is solid and use these resources to clarify any points of confusion.
Choose a resource that offers exercises for practice. This applies particularly to grammar books, which should offer opportunities to test understanding and application.
Annotation and making notes in reference books can help memory retention. This could include highlighting, underlining, or adding personal notes or mnemonic devices.

Avoid over-reliance on reference materials when writing. Eventually, you should be able to generate complex sentences without referring to grammar rules or a dictionary.
Work progressively. Do not attempt to memorize every detail in your reference materials. Focus on what’s relevant to your current level.
Make sure you enjoy the process. Remember that learning is not only about achieving goals, it should also be a pleasant, self-enriching journey. Choose reference materials that cater to your interests whenever possible.