Julie Maybee's "Picturing Hegel: An Illustrated Guide to Hegel's Encyclopaedia Logic" is indeed a nice choice to initiate oneself into Hegelian dialectics. Her article at https://plato.stanford.edu/entries/hegel-dialectics/ is even clearer in some respects, as though some complicated data are presented in a chart or table.
I surmise that an enjoyable and efficient way to grasp Hegel's writings on dialectics is to read them as a narrative of thought-experiments involving instabilities stemming from indeterminateness and stabilities gained by determination evolving one after another (at this point, it may be helpful to evoke Aristotle's criticism of apeiron and the etymology of the word 'definition', in brief: If something is left unbounded, then it is not properly defined and it is imperfect).
Imagine that there is someone like Dr Jekyll and Mr Hyde, Mr. Hyde being an abstract self possessing merely the possibilities just the current stage makes available and persistently seeks definite answers to the questions "who am I?" or "who are you?", while Dr. Jekyll (the philosopher) has been recording Mr. Hyde's attempts.
Suppose we try to pick apples out of a swarm of things. We set a criterion X that detects and includes all the positive instances. X suffices to pick all the apples, however, some non-apples together. Then, we set another criterion Y that detects and excludes the negative instances (non-apples) and leaves only the apples.
A similar process runs here. From the positive vantage point, all the something-other instances are gathered (dramatically, Mr Hyde asks his negation who he is and the other Mr Hyde replies "I am Mr Hyde" - how else can they define themselves at this stage?). From the negative vantage point, they exclude each other, for each one say of himself "I am Mr Hyde."
As a warm-up exercise to get familiar with what Hegel tackles in these early stages, I would recommend Max Black's colourful dialogue "The Identity of Indiscernibles" (Mind 61, pp. 153-164, 1952).