Son of Doctor Esker's Notebook (The Sequel)

Hint
Small #1	344	652	440	396	362	213	426	411	158	319
Small #2	338	667	444	410	348	175	418	425	170	301
Small #3	301	646	409	420	361	164	404	414	152	286
Medium #1	334	674	408	415	300	147	400	447	151	306
Medium #2	313	649	350	397	299	147	363	445	142	312
Medium #3	320	663	314	393	242	137	348	448	143	279
Large #1	277	730	326	431	212	162	336	460	164	326
Large #2	259	692	286	434	252	157	295	436	151	306
Large #3	241	576	306	331	224	214	323	443	163	367

Return of Doctor Esker's Notebook (The Other Sequel)

Hint
Small #1	139	202	180	74	176	121	84	111	149	117
Small #2	125	196	172	67	183	114	81	107	149	116
Small #3	121	201	178	67	177	101	79	113	139	121
Medium #1	123	192	192	81	183	107	86	115	167	124
Medium #2	123	183	201	78	179	103	96	110	160	110
Medium #3	126	183	199	80	174	91	82	109	138	112
Large #1	125	190	218	86	181	83	82	111	114	134
Large #2	89	168	179	83	199	74	91	105	107	137
Large #3	87	171	170	100	168	76	81	76	76	131

Doctor Esker's Notebook IV: The Moroccan Affair
(The Other Other Sequel)

Hint
Small #1	24	25	35	68	53	57	36	68	87	27
Small #2	24	25	33	60	55	57	34	71	70	29
Small #3	21	24	32	59	51	69	31	66	77	30
Medium #1	22	22	35	67	52	65	33	66	79	31
Medium #2	18	17	32	65	45	51	30	63	83	23
Medium #3	15	17	33	51	41	48	33	59	88	28
Large #1	15	15	35	46	39	56	29	59	68	30
Large #2	13	16	34	36	28	44	25	49	48	28
Large #3	20	21	31	41	28	46	32	49	46	41

The hints are sorted by how much help they give you.
The last Large Hint on each page comes very close to just giving you the solution.